25534121351 has 8 divisors (see below), whose sum is σ = 25646170704. Its totient is φ = 25422122880.

The previous prime is 25534121293. The next prime is 25534121357. The reversal of 25534121351 is 15312143552.

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

It is a cyclic number.

It is not a de Polignac number, because 25534121351 - 2¹⁸ = 25533859207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25534121357) 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, 1275320 + ... + 1295186.

It is an arithmetic number, because the mean of its divisors is an integer number (3205771338).

Almost surely, 2^25534121351 is an apocalyptic number.

25534121351 is a deficient number, since it is larger than the sum of its proper divisors (112049353).

25534121351 is a wasteful number, since it uses less digits than its factorization.

25534121351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25441.

The product of its digits is 18000, while the sum is 32.

The spelling of 25534121351 in words is "twenty-five billion, five hundred thirty-four million, one hundred twenty-one thousand, three hundred fifty-one".