57426530251 has 4 divisors (see below), whose sum is σ = 57457192312. Its totient is φ = 57395868192.

The previous prime is 57426530237. The next prime is 57426530261. The reversal of 57426530251 is 15203562475.

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

It is a cyclic number.

It is not a de Polignac number, because 57426530251 - 2¹⁷ = 57426399179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57426530201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15328221 + ... + 15331966.

It is an arithmetic number, because the mean of its divisors is an integer number (14364298078).

Almost surely, 2^57426530251 is an apocalyptic number.

57426530251 is a deficient number, since it is larger than the sum of its proper divisors (30662061).

57426530251 is a wasteful number, since it uses less digits than its factorization.

57426530251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30662060.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 57426530251 in words is "fifty-seven billion, four hundred twenty-six million, five hundred thirty thousand, two hundred fifty-one".