45656437 has 2 divisors, whose sum is σ = 45656438. Its totient is φ = 45656436.

The previous prime is 45656419. The next prime is 45656447. The reversal of 45656437 is 73465654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45279441 + 376996 = 6729^2 + 614^2 .

It is a cyclic number.

It is not a de Polignac number, because 45656437 - 2⁷ = 45656309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45656437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45656447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22828218 + 22828219.

It is an arithmetic number, because the mean of its divisors is an integer number (22828219).

Almost surely, 2^45656437 is an apocalyptic number.

It is an amenable number.

45656437 is a deficient number, since it is larger than the sum of its proper divisors (1).

45656437 is an equidigital number, since it uses as much as digits as its factorization.

45656437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 40.

The square root of 45656437 is about 6756.9547134786. The cubic root of 45656437 is about 357.4105261277.

The spelling of 45656437 in words is "forty-five million, six hundred fifty-six thousand, four hundred thirty-seven".