56762217 has 6 divisors (see below), whose sum is σ = 81989882. Its totient is φ = 37841472.

The previous prime is 56762213. The next prime is 56762221. The reversal of 56762217 is 71226765.

It is an interprime number because it is at equal distance from previous prime (56762213) and next prime (56762221).

It can be written as a sum of positive squares in only one way, i.e., 29419776 + 27342441 = 5424^2 + 5229^2 .

It is not a de Polignac number, because 56762217 - 2² = 56762213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56762213) 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, 3153448 + ... + 3153465.

Almost surely, 2^56762217 is an apocalyptic number.

It is an amenable number.

56762217 is a deficient number, since it is larger than the sum of its proper divisors (25227665).

56762217 is a wasteful number, since it uses less digits than its factorization.

56762217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306919 (or 6306916 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 56762217 is about 7534.0704137936. The cubic root of 56762217 is about 384.3142162857.

The spelling of 56762217 in words is "fifty-six million, seven hundred sixty-two thousand, two hundred seventeen".