653825899 has 16 divisors (see below), whose sum is σ = 724101120. Its totient is φ = 587213440.

The previous prime is 653825873. The next prime is 653825903. The reversal of 653825899 is 998528356.

It is a cyclic number.

It is not a de Polignac number, because 653825899 - 2⁷ = 653825771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653825839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185544 + ... + 189034.

It is an arithmetic number, because the mean of its divisors is an integer number (45256320).

Almost surely, 2^653825899 is an apocalyptic number.

653825899 is a deficient number, since it is larger than the sum of its proper divisors (70275221).

653825899 is a wasteful number, since it uses less digits than its factorization.

653825899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010.

The product of its digits is 4665600, while the sum is 55.

The square root of 653825899 is about 25570.0195346034. The cubic root of 653825899 is about 867.9353423455.

The spelling of 653825899 in words is "six hundred fifty-three million, eight hundred twenty-five thousand, eight hundred ninety-nine".