57477090 has 128 divisors (see below), whose sum is σ = 161740800. Its totient is φ = 12925440.

The previous prime is 57477053. The next prime is 57477097. The reversal of 57477090 is 9077475.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57477097) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 557979 + ... + 558081.

It is an arithmetic number, because the mean of its divisors is an integer number (1263600).

Almost surely, 2^57477090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57477090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80870400).

57477090 is an abundant number, since it is smaller than the sum of its proper divisors (104263710).

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

57477090 is a wasteful number, since it uses less digits than its factorization.

57477090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232.

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 57477090 is about 7581.3646528841. The cubic root of 57477090 is about 385.9208630843.

The spelling of 57477090 in words is "fifty-seven million, four hundred seventy-seven thousand, ninety".