57250624369 has 4 divisors (see below), whose sum is σ = 59224783860. Its totient is φ = 55276464880.

The previous prime is 57250624349. The next prime is 57250624373. The reversal of 57250624369 is 96342605275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43791840225 + 13458784144 = 209265^2 + 116012^2 .

It is a cyclic number.

It is not a de Polignac number, because 57250624369 - 2¹¹ = 57250622321 is a prime.

It is a super-2 number, since 2×57250624369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57250624349) 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 in 3 ways as a sum of consecutive naturals, for example, 987079702 + ... + 987079759.

It is an arithmetic number, because the mean of its divisors is an integer number (14806195965).

Almost surely, 2^57250624369 is an apocalyptic number.

It is an amenable number.

57250624369 is a deficient number, since it is larger than the sum of its proper divisors (1974159491).

57250624369 is a wasteful number, since it uses less digits than its factorization.

57250624369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974159490.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 57250624369 in words is "fifty-seven billion, two hundred fifty million, six hundred twenty-four thousand, three hundred sixty-nine".