57154320 has 120 divisors (see below), whose sum is σ = 193517376. Its totient is φ = 15116544.

The previous prime is 57154313. The next prime is 57154373. The reversal of 57154320 is 2345175.

It is a happy number.

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, 117117 + ... + 117603.

Almost surely, 2^57154320 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 57154320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96758688).

57154320 is an abundant number, since it is smaller than the sum of its proper divisors (136363056).

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

57154320 is a wasteful number, since it uses less digits than its factorization.

57154320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 57154320 is about 7560.0476188976. The cubic root of 57154320 is about 385.1971105136.

Adding to 57154320 its reverse (2345175), we get a palindrome (59499495).

The spelling of 57154320 in words is "fifty-seven million, one hundred fifty-four thousand, three hundred twenty".