25002500224 has 64 divisors (see below), whose sum is σ = 54133695000. Its totient is φ = 11433664512.

The previous prime is 25002500209. The next prime is 25002500251. The reversal of 25002500224 is 42200520052.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23116161600 + 1886338624 = 152040^2 + 43432^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×25002500224² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25002500195 and 25002500204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112452 + ... + 250300.

Almost surely, 2^25002500224 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 25002500224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27066847500).

25002500224 is an abundant number, since it is smaller than the sum of its proper divisors (29131194776).

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

25002500224 is a wasteful number, since it uses less digits than its factorization.

25002500224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137985 (or 137973 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

It can be divided in two parts, 2500 and 2500224, that added together give a square (2502724 = 1582²).

The spelling of 25002500224 in words is "twenty-five billion, two million, five hundred thousand, two hundred twenty-four".