56206553 has 24 divisors (see below), whose sum is σ = 64530648. Its totient is φ = 48642048.

The previous prime is 56206543. The next prime is 56206561. The reversal of 56206553 is 35560265.

It can be written as a sum of positive squares in 12 ways, for example, as 11744329 + 44462224 = 3427^2 + 6668^2 .

It is not a de Polignac number, because 56206553 - 2¹⁸ = 55944409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56206523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 579401 + ... + 579497.

It is an arithmetic number, because the mean of its divisors is an integer number (2688777).

Almost surely, 2^56206553 is an apocalyptic number.

56206553 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

56206553 is a deficient number, since it is larger than the sum of its proper divisors (8324095).

56206553 is a wasteful number, since it uses less digits than its factorization.

56206553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 56206553 is about 7497.1029738160. The cubic root of 56206553 is about 383.0560423552.

The spelling of 56206553 in words is "fifty-six million, two hundred six thousand, five hundred fifty-three".