57478536 has 48 divisors (see below), whose sum is σ = 156024960. Its totient is φ = 19116000.

The previous prime is 57478529. The next prime is 57478543. The reversal of 57478536 is 63587475.

57478536 is a `hidden beast` number, since 574 + 78 + 5 + 3 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (57478529) and next prime (57478543).

It is a junction number, because it is equal to n+sod(n) for n = 57478491 and 57478500.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53541 + ... + 54603.

It is an arithmetic number, because the mean of its divisors is an integer number (3250520).

Almost surely, 2^57478536 is an apocalyptic number.

It is an amenable number.

57478536 is an abundant number, since it is smaller than the sum of its proper divisors (98546424).

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

57478536 is a wasteful number, since it uses less digits than its factorization.

57478536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826 (or 1819 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 57478536 is about 7581.4600177011. The cubic root of 57478536 is about 385.9240993702.

The spelling of 57478536 in words is "fifty-seven million, four hundred seventy-eight thousand, five hundred thirty-six".