57121452236 has 12 divisors (see below), whose sum is σ = 100896771528. Its totient is φ = 28293803232.

The previous prime is 57121452211. The next prime is 57121452251. The reversal of 57121452236 is 63225412175.

It is a self number, because there is not a number n which added to its sum of digits gives 57121452236.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66730241 + ... + 66731096.

It is an arithmetic number, because the mean of its divisors is an integer number (8408064294).

Almost surely, 2^57121452236 is an apocalyptic number.

It is an amenable number.

57121452236 is a deficient number, since it is larger than the sum of its proper divisors (43775319292).

57121452236 is a wasteful number, since it uses less digits than its factorization.

57121452236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133461448 (or 133461446 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The spelling of 57121452236 in words is "fifty-seven billion, one hundred twenty-one million, four hundred fifty-two thousand, two hundred thirty-six".