56628541 has 2 divisors, whose sum is σ = 56628542. Its totient is φ = 56628540.

The previous prime is 56628521. The next prime is 56628571. The reversal of 56628541 is 14582665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56625625 + 2916 = 7525^2 + 54^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56628541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56628541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56628521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28314270 + 28314271.

It is an arithmetic number, because the mean of its divisors is an integer number (28314271).

Almost surely, 2^56628541 is an apocalyptic number.

It is an amenable number.

56628541 is a deficient number, since it is larger than the sum of its proper divisors (1).

56628541 is an equidigital number, since it uses as much as digits as its factorization.

56628541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 37.

The square root of 56628541 is about 7525.1937516585. The cubic root of 56628541 is about 384.0122902787.

The spelling of 56628541 in words is "fifty-six million, six hundred twenty-eight thousand, five hundred forty-one".