25413254493 has 32 divisors (see below), whose sum is σ = 38803968000. Its totient is φ = 14652470400.

The previous prime is 25413254453. The next prime is 25413254519. The reversal of 25413254493 is 39445231452.

It is a de Polignac number, because none of the positive numbers 2^k-25413254493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25413254453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150168 + ... + 270881.

It is an arithmetic number, because the mean of its divisors is an integer number (1212624000).

Almost surely, 2^25413254493 is an apocalyptic number.

It is an amenable number.

25413254493 is a deficient number, since it is larger than the sum of its proper divisors (13390713507).

25413254493 is a wasteful number, since it uses less digits than its factorization.

25413254493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421153.

The product of its digits is 518400, while the sum is 42.

The spelling of 25413254493 in words is "twenty-five billion, four hundred thirteen million, two hundred fifty-four thousand, four hundred ninety-three".