25252326216 has 48 divisors (see below), whose sum is σ = 73652620860. Its totient is φ = 7769946240.

The previous prime is 25252326199. The next prime is 25252326217. The reversal of 25252326216 is 61262325252.

25252326216 is a `hidden beast` number, since 2 + 5 + 2 + 5 + 23 + 2 + 621 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24139836900 + 1112489316 = 155370^2 + 33354^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25252326217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13488555 + ... + 13490426.

Almost surely, 2^25252326216 is an apocalyptic number.

25252326216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25252326216 is an abundant number, since it is smaller than the sum of its proper divisors (48400294644).

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

25252326216 is a wasteful number, since it uses less digits than its factorization.

25252326216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26979006 (or 26978999 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The spelling of 25252326216 in words is "twenty-five billion, two hundred fifty-two million, three hundred twenty-six thousand, two hundred sixteen".