25116625405 has 8 divisors (see below), whose sum is σ = 30155040000. Its totient is φ = 20083240656.

The previous prime is 25116625349. The next prime is 25116625409. The reversal of 25116625405 is 50452661152.

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

It is a cyclic number.

It is not a de Polignac number, because 25116625405 - 2¹³ = 25116617213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25116625409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246465 + ... + 1266454.

It is an arithmetic number, because the mean of its divisors is an integer number (3769380000).

Almost surely, 2^25116625405 is an apocalyptic number.

It is an amenable number.

25116625405 is a deficient number, since it is larger than the sum of its proper divisors (5038414595).

25116625405 is a wasteful number, since it uses less digits than its factorization.

25116625405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514923.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 25116625405 in words is "twenty-five billion, one hundred sixteen million, six hundred twenty-five thousand, four hundred five".