55658040 has 64 divisors (see below), whose sum is σ = 167508000. Its totient is φ = 14794752.

The previous prime is 55658023. The next prime is 55658041. The reversal of 55658040 is 4085655.

It is a junction number, because it is equal to n+sod(n) for n = 55657992 and 55658010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55658041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53364 + ... + 54396.

Almost surely, 2^55658040 is an apocalyptic number.

It is an amenable number.

55658040 is an abundant number, since it is smaller than the sum of its proper divisors (111849960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55658040 is a wasteful number, since it uses less digits than its factorization.

55658040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 55658040 is about 7460.4316229023. The cubic root of 55658040 is about 381.8059008625.

The spelling of 55658040 in words is "fifty-five million, six hundred fifty-eight thousand, forty".