36251225021 has 6 divisors (see below), whose sum is σ = 39846387966. Its totient is φ = 32955659000.

The previous prime is 36251224957. The next prime is 36251225039. The reversal of 36251225021 is 12052215263.

It can be written as a sum of positive squares in only one way, i.e., 21967389796 + 14283835225 = 148214^2 + 119515^2 .

It is not a de Polignac number, because 36251225021 - 2⁶ = 36251224957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36251225041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149798330 + ... + 149798571.

It is an arithmetic number, because the mean of its divisors is an integer number (6641064661).

Almost surely, 2^36251225021 is an apocalyptic number.

It is an amenable number.

36251225021 is a deficient number, since it is larger than the sum of its proper divisors (3595162945).

36251225021 is a wasteful number, since it uses less digits than its factorization.

36251225021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299596923 (or 299596912 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 36251225021 in words is "thirty-six billion, two hundred fifty-one million, two hundred twenty-five thousand, twenty-one".