55758020 has 24 divisors (see below), whose sum is σ = 118233024. Its totient is φ = 22085856.

The previous prime is 55758019. The next prime is 55758023. The reversal of 55758020 is 2085755.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55758023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11474 + ... + 15593.

It is an arithmetic number, because the mean of its divisors is an integer number (4926376).

Almost surely, 2^55758020 is an apocalyptic number.

It is an amenable number.

55758020 is an abundant number, since it is smaller than the sum of its proper divisors (62475004).

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

55758020 is a wasteful number, since it uses less digits than its factorization.

55758020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27179 (or 27177 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 55758020 is about 7467.1293011438. The cubic root of 55758020 is about 382.0343801006.

The spelling of 55758020 in words is "fifty-five million, seven hundred fifty-eight thousand, twenty".