254125520 has 80 divisors (see below), whose sum is σ = 682509888. Its totient is φ = 86968320.

The previous prime is 254125511. The next prime is 254125523. The reversal of 254125520 is 25521452.

254125520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 254125520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254125523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6467 + ... + 23453.

Almost surely, 2^254125520 is an apocalyptic number.

254125520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254125520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341254944).

254125520 is an abundant number, since it is smaller than the sum of its proper divisors (428384368).

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

254125520 is a wasteful number, since it uses less digits than its factorization.

254125520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17028 (or 17022 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 254125520 is about 15941.3148767597. The cubic root of 254125520 is about 633.4068563460.

Adding to 254125520 its reverse (25521452), we get a palindrome (279646972).

The spelling of 254125520 in words is "two hundred fifty-four million, one hundred twenty-five thousand, five hundred twenty".