25509922723 has 8 divisors (see below), whose sum is σ = 26339719040. Its totient is φ = 24680557440.

The previous prime is 25509922699. The next prime is 25509922729. The reversal of 25509922723 is 32722990552.

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 25509922723 - 2¹⁷ = 25509791651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25509922729) 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, 14761 + ... + 226357.

It is an arithmetic number, because the mean of its divisors is an integer number (3292464880).

Almost surely, 2^25509922723 is an apocalyptic number.

25509922723 is a deficient number, since it is larger than the sum of its proper divisors (829796317).

25509922723 is a wasteful number, since it uses less digits than its factorization.

25509922723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215517.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 25509922723 in words is "twenty-five billion, five hundred nine million, nine hundred twenty-two thousand, seven hundred twenty-three".