56662493 has 2 divisors, whose sum is σ = 56662494. Its totient is φ = 56662492.

The previous prime is 56662483. The next prime is 56662499. The reversal of 56662493 is 39426665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55323844 + 1338649 = 7438^2 + 1157^2 .

It is a cyclic number.

It is not a de Polignac number, because 56662493 - 2¹² = 56658397 is a prime.

It is a super-2 number, since 2×56662493² = 6421276225950098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56662493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56662499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28331246 + 28331247.

It is an arithmetic number, because the mean of its divisors is an integer number (28331247).

Almost surely, 2^56662493 is an apocalyptic number.

It is an amenable number.

56662493 is a deficient number, since it is larger than the sum of its proper divisors (1).

56662493 is an equidigital number, since it uses as much as digits as its factorization.

56662493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 41.

The square root of 56662493 is about 7527.4493023866. The cubic root of 56662493 is about 384.0890206120.

The spelling of 56662493 in words is "fifty-six million, six hundred sixty-two thousand, four hundred ninety-three".