56263399 has 4 divisors (see below), whose sum is σ = 56308536. Its totient is φ = 56218264.

The previous prime is 56263381. The next prime is 56263457. The reversal of 56263399 is 99336265.

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 56263399 - 2⁵ = 56263367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56263309) 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, 20644 + ... + 23209.

It is an arithmetic number, because the mean of its divisors is an integer number (14077134).

Almost surely, 2^56263399 is an apocalyptic number.

56263399 is a deficient number, since it is larger than the sum of its proper divisors (45137).

56263399 is a wasteful number, since it uses less digits than its factorization.

56263399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45136.

The product of its digits is 262440, while the sum is 43.

The square root of 56263399 is about 7500.8932134780. The cubic root of 56263399 is about 383.1851368336.

It can be divided in two parts, 5626 and 3399, that added together give a square (9025 = 95²).

The spelling of 56263399 in words is "fifty-six million, two hundred sixty-three thousand, three hundred ninety-nine".