57077745 has 8 divisors (see below), whose sum is σ = 91324416. Its totient is φ = 30441456.

The previous prime is 57077723. The next prime is 57077753. The reversal of 57077745 is 54777075.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57077745 - 2¹⁸ = 56815601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57077697 and 57077706.

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, 1902577 + ... + 1902606.

It is an arithmetic number, because the mean of its divisors is an integer number (11415552).

Almost surely, 2^57077745 is an apocalyptic number.

It is an amenable number.

57077745 is a deficient number, since it is larger than the sum of its proper divisors (34246671).

57077745 is a wasteful number, since it uses less digits than its factorization.

57077745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3805191.

The product of its (nonzero) digits is 240100, while the sum is 42.

The square root of 57077745 is about 7554.9814692030. The cubic root of 57077745 is about 385.0250054035.

The spelling of 57077745 in words is "fifty-seven million, seventy-seven thousand, seven hundred forty-five".