57642787325 has 6 divisors (see below), whose sum is σ = 71477056314. Its totient is φ = 46114229840.

The previous prime is 57642787277. The next prime is 57642787337. The reversal of 57642787325 is 52378724675.

It can be written as a sum of positive squares in 3 ways, for example, as 474455524 + 57168331801 = 21782^2 + 239099^2 .

It is not a de Polignac number, because 57642787325 - 2¹² = 57642783229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1152855722 + ... + 1152855771.

It is an arithmetic number, because the mean of its divisors is an integer number (11912842719).

Almost surely, 2^57642787325 is an apocalyptic number.

It is an amenable number.

57642787325 is a deficient number, since it is larger than the sum of its proper divisors (13834268989).

57642787325 is a wasteful number, since it uses less digits than its factorization.

57642787325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305711503 (or 2305711498 counting only the distinct ones).

The product of its digits is 19756800, while the sum is 56.

The spelling of 57642787325 in words is "fifty-seven billion, six hundred forty-two million, seven hundred eighty-seven thousand, three hundred twenty-five".