25136834116 has 9 divisors (see below), whose sum is σ = 43990014621. Its totient is φ = 12568258512.

The previous prime is 25136834071. The next prime is 25136834123. The reversal of 25136834116 is 61143863152.

The square root of 25136834116 is 158546.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4373176900 + 20763657216 = 66130^2 + 144096^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 277456 + ... + 356728.

Almost surely, 2^25136834116 is an apocalyptic number.

25136834116 is the 158546-th square number.

It is an amenable number.

25136834116 is a deficient number, since it is larger than the sum of its proper divisors (18853180505).

25136834116 is an frugal number, since it uses more digits than its factorization.

25136834116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158550 (or 79275 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The spelling of 25136834116 in words is "twenty-five billion, one hundred thirty-six million, eight hundred thirty-four thousand, one hundred sixteen".