56641499 has 4 divisors (see below), whose sum is σ = 57358560. Its totient is φ = 55924440.

The previous prime is 56641483. The next prime is 56641511. The reversal of 56641499 is 99414665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56641499 - 2⁴ = 56641483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56641099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358412 + ... + 358569.

It is an arithmetic number, because the mean of its divisors is an integer number (14339640).

Almost surely, 2^56641499 is an apocalyptic number.

56641499 is a deficient number, since it is larger than the sum of its proper divisors (717061).

56641499 is an equidigital number, since it uses as much as digits as its factorization.

56641499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717060.

The product of its digits is 233280, while the sum is 44.

The square root of 56641499 is about 7526.0546769207. The cubic root of 56641499 is about 384.0415785237.

The spelling of 56641499 in words is "fifty-six million, six hundred forty-one thousand, four hundred ninety-nine".