56487329 has 2 divisors, whose sum is σ = 56487330. Its totient is φ = 56487328.

The previous prime is 56487307. The next prime is 56487349. The reversal of 56487329 is 92378465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54390625 + 2096704 = 7375^2 + 1448^2 .

It is a cyclic number.

It is not a de Polignac number, because 56487329 - 2¹² = 56483233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56487329.

It is not a weakly prime, because it can be changed into another prime (56487349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28243664 + 28243665.

It is an arithmetic number, because the mean of its divisors is an integer number (28243665).

Almost surely, 2^56487329 is an apocalyptic number.

It is an amenable number.

56487329 is a deficient number, since it is larger than the sum of its proper divisors (1).

56487329 is an equidigital number, since it uses as much as digits as its factorization.

56487329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 56487329 is about 7515.8052795426. The cubic root of 56487329 is about 383.6928266318.

The spelling of 56487329 in words is "fifty-six million, four hundred eighty-seven thousand, three hundred twenty-nine".