55708641 has 20 divisors (see below), whose sum is σ = 83426112. Its totient is φ = 37046808.

The previous prime is 55708637. The next prime is 55708651. The reversal of 55708641 is 14680755.

55708641 is a `hidden beast` number, since 5 + 5 + 7 + 0 + 8 + 641 = 666.

It is not a de Polignac number, because 55708641 - 2² = 55708637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55708596 and 55708605.

It is not an unprimeable number, because it can be changed into a prime (55708621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51876 + ... + 52938.

Almost surely, 2^55708641 is an apocalyptic number.

It is an amenable number.

55708641 is a deficient number, since it is larger than the sum of its proper divisors (27717471).

55708641 is a wasteful number, since it uses less digits than its factorization.

55708641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 55708641 is about 7463.8221441832. The cubic root of 55708641 is about 381.9215709349.

The spelling of 55708641 in words is "fifty-five million, seven hundred eight thousand, six hundred forty-one".