57145538252 has 48 divisors (see below), whose sum is σ = 117281364480. Its totient is φ = 24084532800.

The previous prime is 57145538249. The next prime is 57145538269. The reversal of 57145538252 is 25283554175.

It is a super-2 number, since 2×57145538252² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 57145538197 and 57145538206.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 687899 + ... + 766482.

It is an arithmetic number, because the mean of its divisors is an integer number (2443361760).

Almost surely, 2^57145538252 is an apocalyptic number.

It is an amenable number.

57145538252 is an abundant number, since it is smaller than the sum of its proper divisors (60135826228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57145538252 is a wasteful number, since it uses less digits than its factorization.

57145538252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454462 (or 1454460 counting only the distinct ones).

The product of its digits is 1680000, while the sum is 47.

The spelling of 57145538252 in words is "fifty-seven billion, one hundred forty-five million, five hundred thirty-eight thousand, two hundred fifty-two".