57345520237 has 4 divisors (see below), whose sum is σ = 57346017120. Its totient is φ = 57345023356.

The previous prime is 57345520223. The next prime is 57345520273. The reversal of 57345520237 is 73202554375.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 57345520237 - 2²⁷ = 57211302509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57345520193 and 57345520202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57345220237) 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, 24978 + ... + 339580.

It is an arithmetic number, because the mean of its divisors is an integer number (14336504280).

Almost surely, 2^57345520237 is an apocalyptic number.

It is an amenable number.

57345520237 is a deficient number, since it is larger than the sum of its proper divisors (496883).

57345520237 is a wasteful number, since it uses less digits than its factorization.

57345520237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496882.

The product of its (nonzero) digits is 882000, while the sum is 43.

The spelling of 57345520237 in words is "fifty-seven billion, three hundred forty-five million, five hundred twenty thousand, two hundred thirty-seven".