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53013521001 = 372524453381
BaseRepresentation
bin110001010111110110…
…100010001001101001
312001211121021220021210
4301113312202021221
51332032430133001
640204251423333
73554503331160
oct612766421151
9161747256253
1053013521001
1120534828a81
12a336154b49
134ccb1a964c
1427cca563d7
1515a4209dd6
hexc57da2269

53013521001 has 8 divisors (see below), whose sum is σ = 80782508224. Its totient is φ = 30293440560.

The previous prime is 53013520957. The next prime is 53013521017. The reversal of 53013521001 is 10012531035.

53013521001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53013521001 - 233 = 44423586409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2524453381 = 53013521001 / (5 + 3 + 0 + 1 + 3 + 5 + 2 + 1 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53013521051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262226670 + ... + 1262226711.

It is an arithmetic number, because the mean of its divisors is an integer number (10097813528).

Almost surely, 253013521001 is an apocalyptic number.

It is an amenable number.

53013521001 is a deficient number, since it is larger than the sum of its proper divisors (27768987223).

53013521001 is a wasteful number, since it uses less digits than its factorization.

53013521001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524453391.

The product of its (nonzero) digits is 450, while the sum is 21.

The spelling of 53013521001 in words is "fifty-three billion, thirteen million, five hundred twenty-one thousand, one".

Divisors: 1 3 7 21 2524453381 7573360143 17671173667 53013521001