258420725 has 12 divisors (see below), whose sum is σ = 320664000. Its totient is φ = 206593200.

The previous prime is 258420703. The next prime is 258420731. The reversal of 258420725 is 527024852.

It is not a de Polignac number, because 258420725 - 2¹² = 258416629 is a prime.

It is a super-2 number, since 2×258420725² = 133562542219051250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47390 + ... + 52560.

It is an arithmetic number, because the mean of its divisors is an integer number (26722000).

Almost surely, 2^258420725 is an apocalyptic number.

258420725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

258420725 is a deficient number, since it is larger than the sum of its proper divisors (62243275).

258420725 is a wasteful number, since it uses less digits than its factorization.

258420725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7180 (or 7175 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 258420725 is about 16075.4696665447. The cubic root of 258420725 is about 636.9555315308.

The spelling of 258420725 in words is "two hundred fifty-eight million, four hundred twenty thousand, seven hundred twenty-five".