61256364 has 24 divisors (see below), whose sum is σ = 153926640. Its totient is φ = 18848064.

The previous prime is 61256357. The next prime is 61256387. The reversal of 61256364 is 46365216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196179 + ... + 196490.

It is an arithmetic number, because the mean of its divisors is an integer number (6413610).

Almost surely, 2^61256364 is an apocalyptic number.

It is an amenable number.

61256364 is an abundant number, since it is smaller than the sum of its proper divisors (92670276).

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

61256364 is a wasteful number, since it uses less digits than its factorization.

61256364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392689 (or 392687 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 61256364 is about 7826.6444917346. The cubic root of 61256364 is about 394.2004099520.

The spelling of 61256364 in words is "sixty-one million, two hundred fifty-six thousand, three hundred sixty-four".