56262139 has 2 divisors, whose sum is σ = 56262140. Its totient is φ = 56262138.

The previous prime is 56262137. The next prime is 56262161. The reversal of 56262139 is 93126265.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56262139 - 2¹ = 56262137 is a prime.

Together with 56262137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56262137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28131069 + 28131070.

It is an arithmetic number, because the mean of its divisors is an integer number (28131070).

Almost surely, 2^56262139 is an apocalyptic number.

56262139 is a deficient number, since it is larger than the sum of its proper divisors (1).

56262139 is an equidigital number, since it uses as much as digits as its factorization.

56262139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 56262139 is about 7500.8092230105. The cubic root of 56262139 is about 383.1822763779.

The spelling of 56262139 in words is "fifty-six million, two hundred sixty-two thousand, one hundred thirty-nine".