56520253 has 2 divisors, whose sum is σ = 56520254. Its totient is φ = 56520252.

The previous prime is 56520241. The next prime is 56520293. The reversal of 56520253 is 35202565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50154724 + 6365529 = 7082^2 + 2523^2 .

It is a cyclic number.

It is not a de Polignac number, because 56520253 - 2⁹ = 56519741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56520293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28260126 + 28260127.

It is an arithmetic number, because the mean of its divisors is an integer number (28260127).

Almost surely, 2^56520253 is an apocalyptic number.

It is an amenable number.

56520253 is a deficient number, since it is larger than the sum of its proper divisors (1).

56520253 is an equidigital number, since it uses as much as digits as its factorization.

56520253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 56520253 is about 7517.9952779980. The cubic root of 56520253 is about 383.7673580904.

The spelling of 56520253 in words is "fifty-six million, five hundred twenty thousand, two hundred fifty-three".