57026550 has 48 divisors (see below), whose sum is σ = 161632512. Its totient is φ = 13034400.

The previous prime is 57026549. The next prime is 57026573. The reversal of 57026550 is 5562075.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26106 + ... + 28205.

It is an arithmetic number, because the mean of its divisors is an integer number (3367344).

Almost surely, 2^57026550 is an apocalyptic number.

57026550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57026550 is an abundant number, since it is smaller than the sum of its proper divisors (104605962).

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

57026550 is a wasteful number, since it uses less digits than its factorization.

57026550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54333 (or 54328 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 57026550 is about 7551.5925472711. The cubic root of 57026550 is about 384.9098568965.

The spelling of 57026550 in words is "fifty-seven million, twenty-six thousand, five hundred fifty".