25080099 has 32 divisors (see below), whose sum is σ = 38361600. Its totient is φ = 14434560.

The previous prime is 25080091. The next prime is 25080103. The reversal of 25080099 is 99008052.

It is not a de Polignac number, because 25080099 - 2³ = 25080091 is a prime.

It is a super-2 number, since 2×25080099² = 1258022731699602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (25080091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69682 + ... + 70040.

It is an arithmetic number, because the mean of its divisors is an integer number (1198800).

Almost surely, 2^25080099 is an apocalyptic number.

25080099 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

25080099 is a deficient number, since it is larger than the sum of its proper divisors (13281501).

25080099 is a wasteful number, since it uses less digits than its factorization.

25080099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 25080099 is about 5008.0034944077. The cubic root of 25080099 is about 292.7137220973.

The spelling of 25080099 in words is "twenty-five million, eighty thousand, ninety-nine".