57780352 has 64 divisors (see below), whose sum is σ = 133905600. Its totient is φ = 24321024.

The previous prime is 57780341. The next prime is 57780391. The reversal of 57780352 is 25308775.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52318 + ... + 53410.

It is an arithmetic number, because the mean of its divisors is an integer number (2092275).

Almost surely, 2^57780352 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 57780352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66952800).

57780352 is an abundant number, since it is smaller than the sum of its proper divisors (76125248).

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

57780352 is a wasteful number, since it uses less digits than its factorization.

57780352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 57780352 is about 7601.3388294431. The cubic root of 57780352 is about 386.5984078214.

The spelling of 57780352 in words is "fifty-seven million, seven hundred eighty thousand, three hundred fifty-two".