56549436 has 12 divisors (see below), whose sum is σ = 131948712. Its totient is φ = 18849808.

The previous prime is 56549419. The next prime is 56549447. The reversal of 56549436 is 63494565.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356215 + ... + 2356238.

It is an arithmetic number, because the mean of its divisors is an integer number (10995726).

Almost surely, 2^56549436 is an apocalyptic number.

It is an amenable number.

56549436 is an abundant number, since it is smaller than the sum of its proper divisors (75399276).

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

56549436 is a wasteful number, since it uses less digits than its factorization.

56549436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4712460 (or 4712458 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 56549436 is about 7519.9359039822. The cubic root of 56549436 is about 383.8333966945.

The spelling of 56549436 in words is "fifty-six million, five hundred forty-nine thousand, four hundred thirty-six".