57435487 has 6 divisors (see below), whose sum is σ = 58804152. Its totient is φ = 56097972.

The previous prime is 57435473. The next prime is 57435493. The reversal of 57435487 is 78453475.

It is a de Polignac number, because none of the positive numbers 2^k-57435487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57435407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13683 + ... + 17380.

It is an arithmetic number, because the mean of its divisors is an integer number (9800692).

Almost surely, 2^57435487 is an apocalyptic number.

57435487 is a deficient number, since it is larger than the sum of its proper divisors (1368665).

57435487 is an equidigital number, since it uses as much as digits as its factorization.

57435487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31149 (or 31106 counting only the distinct ones).

The product of its digits is 470400, while the sum is 43.

The square root of 57435487 is about 7578.6203889626. The cubic root of 57435487 is about 385.8277283474.

The spelling of 57435487 in words is "fifty-seven million, four hundred thirty-five thousand, four hundred eighty-seven".