56263551 has 4 divisors (see below), whose sum is σ = 75018072. Its totient is φ = 37509032.

The previous prime is 56263549. The next prime is 56263577. The reversal of 56263551 is 15536265.

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 56263551 - 2¹ = 56263549 is a prime.

It is a super-2 number, since 2×56263551² = 6331174342259202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56263531) 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, 9377256 + ... + 9377261.

It is an arithmetic number, because the mean of its divisors is an integer number (18754518).

Almost surely, 2^56263551 is an apocalyptic number.

56263551 is a deficient number, since it is larger than the sum of its proper divisors (18754521).

56263551 is a wasteful number, since it uses less digits than its factorization.

56263551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18754520.

The product of its digits is 27000, while the sum is 33.

The square root of 56263551 is about 7500.9033455978. The cubic root of 56263551 is about 383.1854819015.

The spelling of 56263551 in words is "fifty-six million, two hundred sixty-three thousand, five hundred fifty-one".