57227400 has 72 divisors (see below), whose sum is σ = 192194730. Its totient is φ = 15260160.

The previous prime is 57227399. The next prime is 57227407. The reversal of 57227400 is 472275.

It can be written as a sum of positive squares in 3 ways, for example, as 48191364 + 9036036 = 6942^2 + 3006^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (57227407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14097 + ... + 17696.

Almost surely, 2^57227400 is an apocalyptic number.

57227400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57227400 is an abundant number, since it is smaller than the sum of its proper divisors (134967330).

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

57227400 is a wasteful number, since it uses less digits than its factorization.

57227400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31815 (or 31803 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 57227400 is about 7564.8793777561. The cubic root of 57227400 is about 385.3612171832.

Adding to 57227400 its reverse (472275), we get a palindrome (57699675).

It can be divided in two parts, 572 and 27400, that added together give a palindrome (27972).

The spelling of 57227400 in words is "fifty-seven million, two hundred twenty-seven thousand, four hundred".