25011961430416 has 45 divisors (see below), whose sum is σ = 51479687182369. Its totient is φ = 11770174752512.

The previous prime is 25011961430387. The next prime is 25011961430419. The reversal of 25011961430416 is 61403416911052.

The square root of 25011961430416 is 5001196.

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., 19472980352400 + 5538981078016 = 4412820^2 + 2353504^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25011961430419) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 340044555 + ... + 340118101.

Almost surely, 2^{25011961430416} is an apocalyptic number.

25011961430416 is the 5001196-th square number.

It is an amenable number.

25011961430416 is an abundant number, since it is smaller than the sum of its proper divisors (26467725751953).

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

25011961430416 is an frugal number, since it uses more digits than its factorization.

25011961430416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147136 (or 73566 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 25011961430416 in words is "twenty-five trillion, eleven billion, nine hundred sixty-one million, four hundred thirty thousand, four hundred sixteen".