25140099 has 8 divisors (see below), whose sum is σ = 33548032. Its totient is φ = 16746120.

The previous prime is 25140067. The next prime is 25140109. The reversal of 25140099 is 99004152.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25140099 - 2⁵ = 25140067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25140499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914 + ... + 7344.

It is an arithmetic number, because the mean of its divisors is an integer number (4193504).

Almost surely, 2^25140099 is an apocalyptic number.

25140099 is a deficient number, since it is larger than the sum of its proper divisors (8407933).

25140099 is a wasteful number, since it uses less digits than its factorization.

25140099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6977.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 25140099 is about 5013.9903270748. The cubic root of 25140099 is about 292.9469593016.

The spelling of 25140099 in words is "twenty-five million, one hundred forty thousand, ninety-nine".