254649258 has 80 divisors (see below), whose sum is σ = 589567176. Its totient is φ = 82114560.

The previous prime is 254649257. The next prime is 254649271. The reversal of 254649258 is 852946452.

It can be written as a sum of positive squares in 4 ways, for example, as 146967129 + 107682129 = 12123^2 + 10377^2 .

It is not an unprimeable number, because it can be changed into a prime (254649257) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 721210 + ... + 721562.

Almost surely, 2^254649258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254649258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294783588).

254649258 is an abundant number, since it is smaller than the sum of its proper divisors (334917918).

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

254649258 is a wasteful number, since it uses less digits than its factorization.

254649258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 492 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 254649258 is about 15957.7334856802. The cubic root of 254649258 is about 633.8416960559.

The spelling of 254649258 in words is "two hundred fifty-four million, six hundred forty-nine thousand, two hundred fifty-eight".