57450000 has 120 divisors (see below), whose sum is σ = 185988096. Its totient is φ = 15280000.

The previous prime is 57449971. The next prime is 57450017. The reversal of 57450000 is 5475.

It is a tau number, because it is divible by the number of its divisors (120).

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, 149809 + ... + 150191.

Almost surely, 2^57450000 is an apocalyptic number.

57450000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92994048).

57450000 is an abundant number, since it is smaller than the sum of its proper divisors (128538096).

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

57450000 is an equidigital number, since it uses as much as digits as its factorization.

57450000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 57450000 is about 7579.5778246549. The cubic root of 57450000 is about 385.8602230445.

Adding to 57450000 its reverse (5475), we get a palindrome (57455475).

The spelling of 57450000 in words is "fifty-seven million, four hundred fifty thousand".