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53155532131 = 134319486977
BaseRepresentation
bin110001100000010100…
…010000110101100011
312002012111111210221021
4301200110100311203
51332330304012011
640230323310311
73561146365612
oct614024206543
9162174453837
1053155532131
11205a7a04049
12a37581b397
13502173c1c0
142803861879
1515b190c471
hexc60510d63

53155532131 has 8 divisors (see below), whose sum is σ = 57377242944. Its totient is φ = 48952796160.

The previous prime is 53155532099. The next prime is 53155532149. The reversal of 53155532131 is 13123555135.

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

It is a cyclic number.

It is not a de Polignac number, because 53155532131 - 25 = 53155532099 is a prime.

It is a super-2 number, since 2×531555321312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53155532161) 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, 4737886 + ... + 4749091.

It is an arithmetic number, because the mean of its divisors is an integer number (7172155368).

Almost surely, 253155532131 is an apocalyptic number.

53155532131 is a deficient number, since it is larger than the sum of its proper divisors (4221710813).

53155532131 is a wasteful number, since it uses less digits than its factorization.

53155532131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9487421.

The product of its digits is 33750, while the sum is 34.

The spelling of 53155532131 in words is "fifty-three billion, one hundred fifty-five million, five hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 13 431 5603 9486977 123330701 4088887087 53155532131