56164403 has 2 divisors, whose sum is σ = 56164404. Its totient is φ = 56164402.

The previous prime is 56164397. The next prime is 56164441. The reversal of 56164403 is 30446165.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56164403 - 2¹⁰ = 56163379 is a prime.

It is not a weakly prime, because it can be changed into another prime (56164453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28082201 + 28082202.

It is an arithmetic number, because the mean of its divisors is an integer number (28082202).

Almost surely, 2^56164403 is an apocalyptic number.

56164403 is a deficient number, since it is larger than the sum of its proper divisors (1).

56164403 is an equidigital number, since it uses as much as digits as its factorization.

56164403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 56164403 is about 7494.2913607625. The cubic root of 56164403 is about 382.9602655641.

The spelling of 56164403 in words is "fifty-six million, one hundred sixty-four thousand, four hundred three".