258537025 has 6 divisors (see below), whose sum is σ = 320585942. Its totient is φ = 206829600.

The previous prime is 258537023. The next prime is 258537049. The reversal of 258537025 is 520735852.

It can be written as a sum of positive squares in 3 ways, for example, as 38044224 + 220492801 = 6168^2 + 14849^2 .

It is not a de Polignac number, because 258537025 - 2¹ = 258537023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258537023) 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, 5170716 + ... + 5170765.

Almost surely, 2^258537025 is an apocalyptic number.

258537025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

258537025 is a deficient number, since it is larger than the sum of its proper divisors (62048917).

258537025 is a wasteful number, since it uses less digits than its factorization.

258537025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10341491 (or 10341486 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 258537025 is about 16079.0865723150. The cubic root of 258537025 is about 637.0510692996.

The spelling of 258537025 in words is "two hundred fifty-eight million, five hundred thirty-seven thousand, twenty-five".