57981459 has 16 divisors (see below), whose sum is σ = 81510912. Its totient is φ = 36588288.

The previous prime is 57981457. The next prime is 57981461. The reversal of 57981459 is 95418975.

It is an interprime number because it is at equal distance from previous prime (57981457) and next prime (57981461).

It is not a de Polignac number, because 57981459 - 2¹ = 57981457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57981457) 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, 2362 + ... + 11024.

It is an arithmetic number, because the mean of its divisors is an integer number (5094432).

Almost surely, 2^57981459 is an apocalyptic number.

57981459 is a deficient number, since it is larger than the sum of its proper divisors (23529453).

57981459 is a wasteful number, since it uses less digits than its factorization.

57981459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8786.

The product of its digits is 453600, while the sum is 48.

The square root of 57981459 is about 7614.5557322801. Note that the first 3 decimals coincide. The cubic root of 57981459 is about 387.0464125842.

The spelling of 57981459 in words is "fifty-seven million, nine hundred eighty-one thousand, four hundred fifty-nine".