25396406004 has 24 divisors (see below), whose sum is σ = 59260874400. Its totient is φ = 8465098144.

The previous prime is 25396406003. The next prime is 25396406011. The reversal of 25396406004 is 40060469352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25396406003) 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, 465547 + ... + 517229.

It is an arithmetic number, because the mean of its divisors is an integer number (2469203100).

Almost surely, 2^25396406004 is an apocalyptic number.

It is an amenable number.

25396406004 is an abundant number, since it is smaller than the sum of its proper divisors (33864468396).

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

25396406004 is a wasteful number, since it uses less digits than its factorization.

25396406004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92639 (or 92637 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 25396406004 in words is "twenty-five billion, three hundred ninety-six million, four hundred six thousand, four".