258023457 has 12 divisors (see below), whose sum is σ = 372842704. Its totient is φ = 171950040.

The previous prime is 258023429. The next prime is 258023497. The reversal of 258023457 is 754320852.

258023457 is a `hidden beast` number, since 2 + 580 + 23 + 4 + 57 = 666.

It is not a de Polignac number, because 258023457 - 2⁶ = 258023393 is a prime.

It is a super-2 number, since 2×258023457² = 133152208724461698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258023497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35982 + ... + 42552.

Almost surely, 2^258023457 is an apocalyptic number.

It is an amenable number.

258023457 is a deficient number, since it is larger than the sum of its proper divisors (114819247).

258023457 is a wasteful number, since it uses less digits than its factorization.

258023457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10940 (or 10937 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 258023457 is about 16063.1085721289. The cubic root of 258023457 is about 636.6289686782.

The spelling of 258023457 in words is "two hundred fifty-eight million, twenty-three thousand, four hundred fifty-seven".