55641537 has 24 divisors (see below), whose sum is σ = 92476800. Its totient is φ = 31579200.

The previous prime is 55641533. The next prime is 55641563. The reversal of 55641537 is 73514655.

55641537 is a `hidden beast` number, since 5 + 5 + 641 + 5 + 3 + 7 = 666.

It is not a de Polignac number, because 55641537 - 2² = 55641533 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55641533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6589 + ... + 12437.

It is an arithmetic number, because the mean of its divisors is an integer number (3853200).

Almost surely, 2^55641537 is an apocalyptic number.

It is an amenable number.

55641537 is a deficient number, since it is larger than the sum of its proper divisors (36835263).

55641537 is a wasteful number, since it uses less digits than its factorization.

55641537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013 (or 6010 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 55641537 is about 7459.3255057009. The cubic root of 55641537 is about 381.7681610879.

The spelling of 55641537 in words is "fifty-five million, six hundred forty-one thousand, five hundred thirty-seven".