25155117813381 has 8 divisors (see below), whose sum is σ = 33540212675904. Its totient is φ = 16770050746560.

The previous prime is 25155117813347. The next prime is 25155117813391. The reversal of 25155117813381 is 18331871155152.

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

It is not a de Polignac number, because 25155117813381 - 2¹⁷ = 25155117682309 is a prime.

It is a super-2 number, since 2×25155117813381² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25155117813391) 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, 4736641 + ... + 8529126.

It is an arithmetic number, because the mean of its divisors is an integer number (4192526584488).

Almost surely, 2^{25155117813381} is an apocalyptic number.

It is an amenable number.

25155117813381 is a deficient number, since it is larger than the sum of its proper divisors (8385094862523).

25155117813381 is a wasteful number, since it uses less digits than its factorization.

25155117813381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13897851.

The product of its digits is 1008000, while the sum is 51.

The spelling of 25155117813381 in words is "twenty-five trillion, one hundred fifty-five billion, one hundred seventeen million, eight hundred thirteen thousand, three hundred eighty-one".