57744225 has 144 divisors (see below), whose sum is σ = 134574720. Its totient is φ = 23760000.

The previous prime is 57744221. The next prime is 57744259. The reversal of 57744225 is 52244775.

It is a happy number.

57744225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57744225 - 2² = 57744221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57744225.

It is not an unprimeable number, because it can be changed into a prime (57744221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 571675 + ... + 571775.

Almost surely, 2^57744225 is an apocalyptic number.

57744225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57744225 is an abundant number, since it is smaller than the sum of its proper divisors (76830495).

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

57744225 is a wasteful number, since it uses less digits than its factorization.

57744225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 127 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 57744225 is about 7598.9621001818. The cubic root of 57744225 is about 386.5178178395.

It can be divided in two parts, 5774 and 4225, that added together give a palindrome (9999).

The spelling of 57744225 in words is "fifty-seven million, seven hundred forty-four thousand, two hundred twenty-five".