25613404255033 has 12 divisors (see below), whose sum is σ = 29908474231680. Its totient is φ = 21870869890632.

The previous prime is 25613404255009. The next prime is 25613404255051. The reversal of 25613404255033 is 33055240431652.

It is a de Polignac number, because none of the positive numbers 2^k-25613404255033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25613404255003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 993756193 + ... + 993781966.

It is an arithmetic number, because the mean of its divisors is an integer number (2492372852640).

Almost surely, 2^{25613404255033} is an apocalyptic number.

It is an amenable number.

25613404255033 is a deficient number, since it is larger than the sum of its proper divisors (4295069976647).

25613404255033 is a wasteful number, since it uses less digits than its factorization.

25613404255033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987538436 (or 1987538429 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 43.

Adding to 25613404255033 its reverse (33055240431652), we get a palindrome (58668644686685).

The spelling of 25613404255033 in words is "twenty-five trillion, six hundred thirteen billion, four hundred four million, two hundred fifty-five thousand, thirty-three".