57780616 has 32 divisors (see below), whose sum is σ = 110496960. Its totient is φ = 28320832.

The previous prime is 57780607. The next prime is 57780617. The reversal of 57780616 is 61608775.

It is not an unprimeable number, because it can be changed into a prime (57780617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114621 + ... + 115123.

It is an arithmetic number, because the mean of its divisors is an integer number (3453030).

Almost surely, 2^57780616 is an apocalyptic number.

It is an amenable number.

57780616 is a deficient number, since it is larger than the sum of its proper divisors (52716344).

57780616 is a wasteful number, since it uses less digits than its factorization.

57780616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 57780616 is about 7601.3561947852. The cubic root of 57780616 is about 386.5989966134.

The spelling of 57780616 in words is "fifty-seven million, seven hundred eighty thousand, six hundred sixteen".