258421552 has 20 divisors (see below), whose sum is σ = 517957920. Its totient is φ = 124755008.

The previous prime is 258421531. The next prime is 258421589. The reversal of 258421552 is 255124852.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278008 + ... + 278935.

It is an arithmetic number, because the mean of its divisors is an integer number (25897896).

Almost surely, 2^258421552 is an apocalyptic number.

It is an amenable number.

258421552 is an abundant number, since it is smaller than the sum of its proper divisors (259536368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258421552 is a wasteful number, since it uses less digits than its factorization.

258421552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556980 (or 556974 counting only the distinct ones).

The product of its digits is 32000, while the sum is 34.

The square root of 258421552 is about 16075.4953889453. The cubic root of 258421552 is about 636.9562109934.

The spelling of 258421552 in words is "two hundred fifty-eight million, four hundred twenty-one thousand, five hundred fifty-two".