56502389 has 2 divisors, whose sum is σ = 56502390. Its totient is φ = 56502388.

The previous prime is 56502377. The next prime is 56502419. The reversal of 56502389 is 98320565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31080625 + 25421764 = 5575^2 + 5042^2 .

It is a cyclic number.

It is not a de Polignac number, because 56502389 - 2⁸ = 56502133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56502349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28251194 + 28251195.

It is an arithmetic number, because the mean of its divisors is an integer number (28251195).

Almost surely, 2^56502389 is an apocalyptic number.

It is an amenable number.

56502389 is a deficient number, since it is larger than the sum of its proper divisors (1).

56502389 is an equidigital number, since it uses as much as digits as its factorization.

56502389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 56502389 is about 7516.8071014228. The cubic root of 56502389 is about 383.7269221870.

The spelling of 56502389 in words is "fifty-six million, five hundred two thousand, three hundred eighty-nine".