2133666525 has 24 divisors (see below), whose sum is σ = 3542451840. Its totient is φ = 1133184640.

The previous prime is 2133666467. The next prime is 2133666547. The reversal of 2133666525 is 5256663312.

It is not a de Polignac number, because 2133666525 - 2⁷ = 2133666397 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41592 + ... + 77441.

It is an arithmetic number, because the mean of its divisors is an integer number (147602160).

Almost surely, 2^2133666525 is an apocalyptic number.

2133666525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2133666525 is a deficient number, since it is larger than the sum of its proper divisors (1408785315).

2133666525 is a wasteful number, since it uses less digits than its factorization.

2133666525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119285 (or 119280 counting only the distinct ones).

The product of its digits is 194400, while the sum is 39.

The square root of 2133666525 is about 46191.6282999420. The cubic root of 2133666525 is about 1287.3861953640.

The spelling of 2133666525 in words is "two billion, one hundred thirty-three million, six hundred sixty-six thousand, five hundred twenty-five".