57060820 has 24 divisors (see below), whose sum is σ = 122379264. Its totient is φ = 22338336.

The previous prime is 57060811. The next prime is 57060827. The reversal of 57060820 is 2806075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57060827) 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, 29412 + ... + 31291.

It is an arithmetic number, because the mean of its divisors is an integer number (5099136).

Almost surely, 2^57060820 is an apocalyptic number.

It is an amenable number.

57060820 is an abundant number, since it is smaller than the sum of its proper divisors (65318444).

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

57060820 is a wasteful number, since it uses less digits than its factorization.

57060820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60759 (or 60757 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 57060820 is about 7553.8612642807. The cubic root of 57060820 is about 384.9869450793.

Adding to 57060820 its reverse (2806075), we get a palindrome (59866895).

The spelling of 57060820 in words is "fifty-seven million, sixty thousand, eight hundred twenty".