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55504641 = 318501547
BaseRepresentation
bin1101001110111…
…0111100000001
310212102221001110
43103232330001
5103202122031
65301353533
71242532053
oct323567401
9125387043
1055504641
1129370505
12167088a9
13b664aaa
14752b8d3
154d15c46
hex34eef01

55504641 has 4 divisors (see below), whose sum is σ = 74006192. Its totient is φ = 37003092.

The previous prime is 55504639. The next prime is 55504649. The reversal of 55504641 is 14640555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55504641 - 21 = 55504639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55504599 and 55504608.

It is not an unprimeable number, because it can be changed into a prime (55504649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9250771 + ... + 9250776.

It is an arithmetic number, because the mean of its divisors is an integer number (18501548).

Almost surely, 255504641 is an apocalyptic number.

It is an amenable number.

55504641 is a deficient number, since it is larger than the sum of its proper divisors (18501551).

55504641 is a wasteful number, since it uses less digits than its factorization.

55504641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18501550.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55504641 is about 7450.1436898895. The cubic root of 55504641 is about 381.4548133233.

The spelling of 55504641 in words is "fifty-five million, five hundred four thousand, six hundred forty-one".

Divisors: 1 3 18501547 55504641