56206131 has 32 divisors (see below), whose sum is σ = 83202048. Its totient is φ = 33592320.

The previous prime is 56206109. The next prime is 56206133. The reversal of 56206131 is 13160265.

It is not a de Polignac number, because 56206131 - 2⁶ = 56206067 is a prime.

It is a super-2 number, since 2×56206131² = 6318258323978322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56206133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115170 + ... + 115656.

It is an arithmetic number, because the mean of its divisors is an integer number (2600064).

Almost surely, 2^56206131 is an apocalyptic number.

56206131 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

56206131 is a deficient number, since it is larger than the sum of its proper divisors (26995917).

56206131 is a wasteful number, since it uses less digits than its factorization.

56206131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 56206131 is about 7497.0748295585. The cubic root of 56206131 is about 383.0550836884.

Adding to 56206131 its reverse (13160265), we get a palindrome (69366396).

The spelling of 56206131 in words is "fifty-six million, two hundred six thousand, one hundred thirty-one".