57100545 has 20 divisors (see below), whose sum is σ = 102358740. Its totient is φ = 30453408.

The previous prime is 57100541. The next prime is 57100573. The reversal of 57100545 is 54500175.

It can be written as a sum of positive squares in 2 ways, for example, as 22667121 + 34433424 = 4761^2 + 5868^2 .

It is not a de Polignac number, because 57100545 - 2² = 57100541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57100541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 70090 + ... + 70899.

It is an arithmetic number, because the mean of its divisors is an integer number (5117937).

Almost surely, 2^57100545 is an apocalyptic number.

It is an amenable number.

57100545 is a deficient number, since it is larger than the sum of its proper divisors (45258195).

57100545 is a wasteful number, since it uses less digits than its factorization.

57100545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141006 (or 140997 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 57100545 is about 7556.4902567263. The cubic root of 57100545 is about 385.0762653210.

The spelling of 57100545 in words is "fifty-seven million, one hundred thousand, five hundred forty-five".