25423466406 has 16 divisors (see below), whose sum is σ = 54758235504. Its totient is φ = 7822605024.

The previous prime is 25423466371. The next prime is 25423466407. The reversal of 25423466406 is 60466432452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25423466407) 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, 162970861 + ... + 162971016.

It is an arithmetic number, because the mean of its divisors is an integer number (3422389719).

Almost surely, 2^25423466406 is an apocalyptic number.

25423466406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25423466406 is an abundant number, since it is smaller than the sum of its proper divisors (29334769098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25423466406 is a wasteful number, since it uses less digits than its factorization.

25423466406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325941895.

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 25423466406 its reverse (60466432452), we get a palindrome (85889898858).

The spelling of 25423466406 in words is "twenty-five billion, four hundred twenty-three million, four hundred sixty-six thousand, four hundred six".