57011553 has 8 divisors (see below), whose sum is σ = 84461600. Its totient is φ = 38007684.

The previous prime is 57011501. The next prime is 57011569. The reversal of 57011553 is 35511075.

It is not a de Polignac number, because 57011553 - 2¹⁶ = 56946017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2111539 = 57011553 / (5 + 7 + 0 + 1 + 1 + 5 + 5 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57011453) 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, 1055743 + ... + 1055796.

It is an arithmetic number, because the mean of its divisors is an integer number (10557700).

Almost surely, 2^57011553 is an apocalyptic number.

It is an amenable number.

57011553 is a deficient number, since it is larger than the sum of its proper divisors (27450047).

57011553 is a wasteful number, since it uses less digits than its factorization.

57011553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111548 (or 2111542 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 27.

The square root of 57011553 is about 7550.5995126215. The cubic root of 57011553 is about 384.8761123850.

The spelling of 57011553 in words is "fifty-seven million, eleven thousand, five hundred fifty-three".