57051553 has 16 divisors (see below), whose sum is σ = 62971776. Its totient is φ = 51367680.

The previous prime is 57051551. The next prime is 57051559. The reversal of 57051553 is 35515075.

It is not a de Polignac number, because 57051553 - 2¹ = 57051551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57051551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104026 + ... + 104572.

It is an arithmetic number, because the mean of its divisors is an integer number (3935736).

Almost surely, 2^57051553 is an apocalyptic number.

It is an amenable number.

57051553 is a deficient number, since it is larger than the sum of its proper divisors (5920223).

57051553 is a wasteful number, since it uses less digits than its factorization.

57051553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744.

The product of its (nonzero) digits is 13125, while the sum is 31.

The square root of 57051553 is about 7553.2478444706. The cubic root of 57051553 is about 384.9661025983.

The spelling of 57051553 in words is "fifty-seven million, fifty-one thousand, five hundred fifty-three".