57433530 has 192 divisors, whose sum is σ = 183472128. Its totient is φ = 11172480.

The previous prime is 57433499. The next prime is 57433547. The reversal of 57433530 is 3533475.

It is a super-2 number, since 2×57433530² = 6597220736521800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1221967 + ... + 1222013.

It is an arithmetic number, because the mean of its divisors is an integer number (955584).

Almost surely, 2^57433530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57433530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91736064).

57433530 is an abundant number, since it is smaller than the sum of its proper divisors (126038598).

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

57433530 is a wasteful number, since it uses less digits than its factorization.

57433530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 30.

The square root of 57433530 is about 7578.4912746536. The cubic root of 57433530 is about 385.8233461934.

The spelling of 57433530 in words is "fifty-seven million, four hundred thirty-three thousand, five hundred thirty".