57442053757 has 12 divisors (see below), whose sum is σ = 63181274940. Its totient is φ = 52184908160.

The previous prime is 57442053749. The next prime is 57442053761. The reversal of 57442053757 is 75735024475.

It can be written as a sum of positive squares in 2 ways, for example, as 20326490041 + 37115563716 = 142571^2 + 192654^2 .

It is not a de Polignac number, because 57442053757 - 2³ = 57442053749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57442053757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57442053727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21669 + ... + 339637.

It is an arithmetic number, because the mean of its divisors is an integer number (5265106245).

Almost surely, 2^57442053757 is an apocalyptic number.

It is an amenable number.

57442053757 is a deficient number, since it is larger than the sum of its proper divisors (5739221183).

57442053757 is a wasteful number, since it uses less digits than its factorization.

57442053757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319484 (or 319473 counting only the distinct ones).

The product of its (nonzero) digits is 4116000, while the sum is 49.

The spelling of 57442053757 in words is "fifty-seven billion, four hundred forty-two million, fifty-three thousand, seven hundred fifty-seven".