258009254 has 4 divisors (see below), whose sum is σ = 387013884. Its totient is φ = 129004626.

The previous prime is 258009211. The next prime is 258009299. The reversal of 258009254 is 452900852.

It is a happy number.

258009254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64502312 + ... + 64502315.

It is an arithmetic number, because the mean of its divisors is an integer number (96753471).

Almost surely, 2^258009254 is an apocalyptic number.

258009254 is a deficient number, since it is larger than the sum of its proper divisors (129004630).

258009254 is a wasteful number, since it uses less digits than its factorization.

258009254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129004629.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 258009254 is about 16062.6664660635. Note that the first 3 decimals coincide. The cubic root of 258009254 is about 636.6172873020.

The spelling of 258009254 in words is "two hundred fifty-eight million, nine thousand, two hundred fifty-four".