55807896 has 32 divisors (see below), whose sum is σ = 139703040. Its totient is φ = 18578208.

The previous prime is 55807879. The next prime is 55807903. The reversal of 55807896 is 69870855.

It is a super-2 number, since 2×55807896² = 6229042511893632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33925 + ... + 35531.

It is an arithmetic number, because the mean of its divisors is an integer number (4365720).

Almost surely, 2^55807896 is an apocalyptic number.

It is an amenable number.

55807896 is an abundant number, since it is smaller than the sum of its proper divisors (83895144).

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

55807896 is a wasteful number, since it uses less digits than its factorization.

55807896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063 (or 3059 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 55807896 is about 7470.4682584159. The cubic root of 55807896 is about 382.1482571007.

The spelling of 55807896 in words is "fifty-five million, eight hundred seven thousand, eight hundred ninety-six".