25005540423 has 8 divisors (see below), whose sum is σ = 33395650048. Its totient is φ = 16642895544.

The previous prime is 25005540347. The next prime is 25005540433. The reversal of 25005540423 is 32404550052.

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

It is not a de Polignac number, because 25005540423 - 2¹³ = 25005532231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25005540433) 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, 6864061 + ... + 6867702.

It is an arithmetic number, because the mean of its divisors is an integer number (4174456256).

Almost surely, 2^25005540423 is an apocalyptic number.

25005540423 is a deficient number, since it is larger than the sum of its proper divisors (8390109625).

25005540423 is a wasteful number, since it uses less digits than its factorization.

25005540423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13732373.

The product of its (nonzero) digits is 24000, while the sum is 30.

The spelling of 25005540423 in words is "twenty-five billion, five million, five hundred forty thousand, four hundred twenty-three".