56787201 has 12 divisors (see below), whose sum is σ = 82091412. Its totient is φ = 37827936.

The previous prime is 56787187. The next prime is 56787239. The reversal of 56787201 is 10278765.

It can be written as a sum of positive squares in 2 ways, for example, as 4601025 + 52186176 = 2145^2 + 7224^2 .

It is not a de Polignac number, because 56787201 - 2⁵ = 56787169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56787271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19875 + ... + 22551.

It is an arithmetic number, because the mean of its divisors is an integer number (6840951).

Almost surely, 2^56787201 is an apocalyptic number.

It is an amenable number.

56787201 is a deficient number, since it is larger than the sum of its proper divisors (25304211).

56787201 is a wasteful number, since it uses less digits than its factorization.

56787201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040 (or 5037 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 56787201 is about 7535.7282992422. The cubic root of 56787201 is about 384.3705935644.

The spelling of 56787201 in words is "fifty-six million, seven hundred eighty-seven thousand, two hundred one".