258285477 has 16 divisors (see below), whose sum is σ = 353460800. Its totient is φ = 167674752.

The previous prime is 258285473. The next prime is 258285509. The reversal of 258285477 is 774582852.

It is not a de Polignac number, because 258285477 - 2² = 258285473 is a prime.

It is a super-2 number, since 2×258285477² = 133422775258235058, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258285473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42153 + ... + 47889.

It is an arithmetic number, because the mean of its divisors is an integer number (22091300).

Almost surely, 2^258285477 is an apocalyptic number.

It is an amenable number.

258285477 is a deficient number, since it is larger than the sum of its proper divisors (95175323).

258285477 is a wasteful number, since it uses less digits than its factorization.

258285477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132.

The product of its digits is 1254400, while the sum is 48.

The square root of 258285477 is about 16071.2624581892. The cubic root of 258285477 is about 636.8443923606.

The spelling of 258285477 in words is "two hundred fifty-eight million, two hundred eighty-five thousand, four hundred seventy-seven".