57254981 has 24 divisors (see below), whose sum is σ = 70326144. Its totient is φ = 46384800.

The previous prime is 57254969. The next prime is 57254987. The reversal of 57254981 is 18945275.

57254981 = T₂₀₃ + T₂₀₄ + ... + T₇₀₅.

It is not a de Polignac number, because 57254981 - 2¹⁰ = 57253957 is a prime.

It is a super-2 number, since 2×57254981² = 6556265698620722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57254987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113576 + ... + 114078.

It is an arithmetic number, because the mean of its divisors is an integer number (2930256).

Almost surely, 2^57254981 is an apocalyptic number.

It is an amenable number.

57254981 is a deficient number, since it is larger than the sum of its proper divisors (13071163).

57254981 is a wasteful number, since it uses less digits than its factorization.

57254981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 634 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 57254981 is about 7566.7021217965. The cubic root of 57254981 is about 385.4231160911.

The spelling of 57254981 in words is "fifty-seven million, two hundred fifty-four thousand, nine hundred eighty-one".