56737489 has 2 divisors, whose sum is σ = 56737490. Its totient is φ = 56737488.

The previous prime is 56737463. The next prime is 56737501. The reversal of 56737489 is 98473765.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53406864 + 3330625 = 7308^2 + 1825^2 .

It is a cyclic number.

It is not a de Polignac number, because 56737489 - 2²¹ = 54640337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56737459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28368744 + 28368745.

It is an arithmetic number, because the mean of its divisors is an integer number (28368745).

Almost surely, 2^56737489 is an apocalyptic number.

It is an amenable number.

56737489 is a deficient number, since it is larger than the sum of its proper divisors (1).

56737489 is an equidigital number, since it uses as much as digits as its factorization.

56737489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 56737489 is about 7532.4291566533. The cubic root of 56737489 is about 384.2584003880.

The spelling of 56737489 in words is "fifty-six million, seven hundred thirty-seven thousand, four hundred eighty-nine".