57505430 has 16 divisors (see below), whose sum is σ = 105055920. Its totient is φ = 22658592.

The previous prime is 57505421. The next prime is 57505433. The reversal of 57505430 is 3450575.

It is a junction number, because it is equal to n+sod(n) for n = 57505393 and 57505402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57505433) 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, 42245 + ... + 43584.

It is an arithmetic number, because the mean of its divisors is an integer number (6565995).

Almost surely, 2^57505430 is an apocalyptic number.

57505430 is a deficient number, since it is larger than the sum of its proper divisors (47550490).

57505430 is a wasteful number, since it uses less digits than its factorization.

57505430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85903.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 57505430 is about 7583.2334791961. The cubic root of 57505430 is about 385.9842808171.

The spelling of 57505430 in words is "fifty-seven million, five hundred five thousand, four hundred thirty".