57054740 has 24 divisors (see below), whose sum is σ = 123054792. Its totient is φ = 22204800.

The previous prime is 57054731. The next prime is 57054749. The reversal of 57054740 is 4745075.

It is an interprime number because it is at equal distance from previous prime (57054731) and next prime (57054749).

It can be written as a sum of positive squares in 4 ways, for example, as 28174864 + 28879876 = 5308^2 + 5374^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57054697 and 57054706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57054749) 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, 37811 + ... + 39290.

It is an arithmetic number, because the mean of its divisors is an integer number (5127283).

Almost surely, 2^57054740 is an apocalyptic number.

It is an amenable number.

57054740 is an abundant number, since it is smaller than the sum of its proper divisors (66000052).

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

57054740 is a wasteful number, since it uses less digits than its factorization.

57054740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77147 (or 77145 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 57054740 is about 7553.4588103729. The cubic root of 57054740 is about 384.9732707592.

The spelling of 57054740 in words is "fifty-seven million, fifty-four thousand, seven hundred forty".