33249699025 has 9 divisors (see below), whose sum is σ = 41230757361. Its totient is φ = 26599029840.

The previous prime is 33249699023. The next prime is 33249699071. The reversal of 33249699025 is 52099694233.

The square root of 33249699025 is 182345.

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

It can be written as a sum of positive squares in 4 ways, for example, as 2951422929 + 30298276096 = 54327^2 + 174064^2 .

It is not a de Polignac number, because 33249699025 - 2¹ = 33249699023 is a prime.

It is a super-2 number, since 2×33249699025² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33249699023) 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, 893491 + ... + 929959.

Almost surely, 2^33249699025 is an apocalyptic number.

33249699025 is the 182345-th square number.

33249699025 is the 91173-rd centered octagonal number.

It is an amenable number.

33249699025 is a deficient number, since it is larger than the sum of its proper divisors (7981058336).

33249699025 is an frugal number, since it uses more digits than its factorization.

33249699025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72948 (or 36474 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 52.

The spelling of 33249699025 in words is "thirty-three billion, two hundred forty-nine million, six hundred ninety-nine thousand, twenty-five".