25772099 has 4 divisors (see below), whose sum is σ = 25825080. Its totient is φ = 25719120.

The previous prime is 25772063. The next prime is 25772101. The reversal of 25772099 is 99027752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25772099 - 2⁸ = 25771843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25772009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25754 + ... + 26735.

It is an arithmetic number, because the mean of its divisors is an integer number (6456270).

Almost surely, 2^25772099 is an apocalyptic number.

25772099 is a deficient number, since it is larger than the sum of its proper divisors (52981).

25772099 is an equidigital number, since it uses as much as digits as its factorization.

25772099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52980.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 25772099 is about 5076.6227947327. The cubic root of 25772099 is about 295.3814810013.

The spelling of 25772099 in words is "twenty-five million, seven hundred seventy-two thousand, ninety-nine".