251425552 has 40 divisors (see below), whose sum is σ = 562491776. Its totient is φ = 106638336.

The previous prime is 251425543. The next prime is 251425553. The reversal of 251425552 is 255524152.

It is a happy number.

251425552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×251425552³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (251425553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708 + ... + 22435.

Almost surely, 2^251425552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 251425552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281245888).

251425552 is an abundant number, since it is smaller than the sum of its proper divisors (311066224).

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

251425552 is a wasteful number, since it uses less digits than its factorization.

251425552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23255 (or 23249 counting only the distinct ones).

The product of its digits is 20000, while the sum is 31.

The square root of 251425552 is about 15856.4041320849. The cubic root of 251425552 is about 631.1556448587.

The spelling of 251425552 in words is "two hundred fifty-one million, four hundred twenty-five thousand, five hundred fifty-two".