9975333525 has 72 divisors (see below), whose sum is σ = 17783846880. Its totient is φ = 4931773440.

The previous prime is 9975333523. The next prime is 9975333527. The reversal of 9975333525 is 5253335799.

It is an interprime number because it is at equal distance from previous prime (9975333523) and next prime (9975333527).

It is not a de Polignac number, because 9975333525 - 2¹ = 9975333523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9975333523) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1448791 + ... + 1455659.

Almost surely, 2^9975333525 is an apocalyptic number.

It is an amenable number.

9975333525 is a deficient number, since it is larger than the sum of its proper divisors (7808513355).

9975333525 is a wasteful number, since it uses less digits than its factorization.

9975333525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6983 (or 6961 counting only the distinct ones).

The product of its digits is 3827250, while the sum is 51.

The square root of 9975333525 is about 99876.5914766819. The cubic root of 9975333525 is about 2152.6618212371.

The spelling of 9975333525 in words is "nine billion, nine hundred seventy-five million, three hundred thirty-three thousand, five hundred twenty-five".