57120623 has 6 divisors (see below), whose sum is σ = 66446496. Its totient is φ = 48960492.

The previous prime is 57120599. The next prime is 57120647. The reversal of 57120623 is 32602175.

It is an interprime number because it is at equal distance from previous prime (57120599) and next prime (57120647).

It is not a de Polignac number, because 57120623 - 2⁸ = 57120367 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57120592 and 57120601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57120653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 582815 + ... + 582912.

It is an arithmetic number, because the mean of its divisors is an integer number (11074416).

Almost surely, 2^57120623 is an apocalyptic number.

57120623 is a deficient number, since it is larger than the sum of its proper divisors (9325873).

57120623 is a wasteful number, since it uses less digits than its factorization.

57120623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165741 (or 1165734 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 57120623 is about 7557.8186667847. The cubic root of 57120623 is about 385.1213942261.

Adding to 57120623 its reverse (32602175), we get a palindrome (89722798).

The spelling of 57120623 in words is "fifty-seven million, one hundred twenty thousand, six hundred twenty-three".