25253099405 has 16 divisors (see below), whose sum is σ = 31903495680. Its totient is φ = 19136284992.

The previous prime is 25253099371. The next prime is 25253099423. The reversal of 25253099405 is 50499035252.

It is a cyclic number.

It is not a de Polignac number, because 25253099405 - 2³⁰ = 24179357581 is a prime.

It is a super-2 number, since 2×25253099405² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771227 + ... + 803303.

It is an arithmetic number, because the mean of its divisors is an integer number (1993968480).

Almost surely, 2^25253099405 is an apocalyptic number.

It is an amenable number.

25253099405 is a deficient number, since it is larger than the sum of its proper divisors (6650396275).

25253099405 is a wasteful number, since it uses less digits than its factorization.

25253099405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40388.

The product of its (nonzero) digits is 486000, while the sum is 44.

The spelling of 25253099405 in words is "twenty-five billion, two hundred fifty-three million, ninety-nine thousand, four hundred five".