258507487 has 6 divisors (see below), whose sum is σ = 300712848. Its totient is φ = 221577804.

The previous prime is 258507467. The next prime is 258507503. The reversal of 258507487 is 784705852.

It is not a de Polignac number, because 258507487 - 2²³ = 250118879 is a prime.

It is a super-2 number, since 2×258507487² = 133652241670110338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258507427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2637783 + ... + 2637880.

It is an arithmetic number, because the mean of its divisors is an integer number (50118808).

Almost surely, 2^258507487 is an apocalyptic number.

258507487 is a deficient number, since it is larger than the sum of its proper divisors (42205361).

258507487 is an equidigital number, since it uses as much as digits as its factorization.

258507487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275677 (or 5275670 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 46.

The square root of 258507487 is about 16078.1680237520. The cubic root of 258507487 is about 637.0268072283.

The spelling of 258507487 in words is "two hundred fifty-eight million, five hundred seven thousand, four hundred eighty-seven".