25361836516 has 9 divisors (see below), whose sum is σ = 44383771299. Its totient is φ = 12680759004.

The previous prime is 25361836499. The next prime is 25361836541. The reversal of 25361836516 is 61563816352.

The square root of 25361836516 is 159254.

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

It is a super-2 number, since 2×25361836516² (a number of 22 digits) contains 22 as substring.

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, 278695 + ... + 358321.

Almost surely, 2^25361836516 is an apocalyptic number.

25361836516 is the 159254-th square number.

It is an amenable number.

25361836516 is a deficient number, since it is larger than the sum of its proper divisors (19021934783).

25361836516 is an frugal number, since it uses more digits than its factorization.

25361836516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159258 (or 79629 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The spelling of 25361836516 in words is "twenty-five billion, three hundred sixty-one million, eight hundred thirty-six thousand, five hundred sixteen".