961918525 has 6 divisors (see below), whose sum is σ = 1192779002. Its totient is φ = 769534800.

The previous prime is 961918519. The next prime is 961918537. The reversal of 961918525 is 525819169.

It can be written as a sum of positive squares in 3 ways, for example, as 226532601 + 735385924 = 15051^2 + 27118^2 .

It is not a de Polignac number, because 961918525 - 2⁵ = 961918493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19238346 + ... + 19238395.

Almost surely, 2^961918525 is an apocalyptic number.

It is an amenable number.

961918525 is a deficient number, since it is larger than the sum of its proper divisors (230860477).

961918525 is a wasteful number, since it uses less digits than its factorization.

961918525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38476751 (or 38476746 counting only the distinct ones).

The product of its digits is 194400, while the sum is 46.

The square root of 961918525 is about 31014.8113810160. The cubic root of 961918525 is about 987.1415437755.

The spelling of 961918525 in words is "nine hundred sixty-one million, nine hundred eighteen thousand, five hundred twenty-five".