57251642 has 16 divisors (see below), whose sum is σ = 98331840. Its totient is φ = 24489888.

The previous prime is 57251641. The next prime is 57251647. The reversal of 57251642 is 24615275.

It is a junction number, because it is equal to n+sod(n) for n = 57251599 and 57251608.

It is not an unprimeable number, because it can be changed into a prime (57251641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4373 + ... + 11559.

It is an arithmetic number, because the mean of its divisors is an integer number (6145740).

Almost surely, 2^57251642 is an apocalyptic number.

57251642 is a deficient number, since it is larger than the sum of its proper divisors (41080198).

57251642 is a wasteful number, since it uses less digits than its factorization.

57251642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765.

The product of its digits is 16800, while the sum is 32.

The square root of 57251642 is about 7566.4814808470. The cubic root of 57251642 is about 385.4156235680.

The spelling of 57251642 in words is "fifty-seven million, two hundred fifty-one thousand, six hundred forty-two".