57481116 has 72 divisors (see below), whose sum is σ = 170222976. Its totient is φ = 14928480.

The previous prime is 57481051. The next prime is 57481157. The reversal of 57481116 is 61118475.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2025 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (2364208).

Almost surely, 2^57481116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57481116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85111488).

57481116 is an abundant number, since it is smaller than the sum of its proper divisors (112741860).

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

57481116 is a wasteful number, since it uses less digits than its factorization.

57481116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8919 (or 8910 counting only the distinct ones).

The product of its digits is 6720, while the sum is 33.

The square root of 57481116 is about 7581.6301677146. The cubic root of 57481116 is about 385.9298735215.

The spelling of 57481116 in words is "fifty-seven million, four hundred eighty-one thousand, one hundred sixteen".