56682257 has 2 divisors, whose sum is σ = 56682258. Its totient is φ = 56682256.

The previous prime is 56682253. The next prime is 56682323. The reversal of 56682257 is 75228665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35236096 + 21446161 = 5936^2 + 4631^2 .

It is a cyclic number.

It is not a de Polignac number, because 56682257 - 2² = 56682253 is a prime.

It is a super-2 number, since 2×56682257² = 6425756517228098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56682251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28341128 + 28341129.

It is an arithmetic number, because the mean of its divisors is an integer number (28341129).

Almost surely, 2^56682257 is an apocalyptic number.

It is an amenable number.

56682257 is a deficient number, since it is larger than the sum of its proper divisors (1).

56682257 is an equidigital number, since it uses as much as digits as its factorization.

56682257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 41.

The square root of 56682257 is about 7528.7619832214. The cubic root of 56682257 is about 384.1336724476.

The spelling of 56682257 in words is "fifty-six million, six hundred eighty-two thousand, two hundred fifty-seven".