25135351562 has 8 divisors (see below), whose sum is σ = 38722028196. Its totient is φ = 12228008832.

The previous prime is 25135351561. The next prime is 25135351589. The reversal of 25135351562 is 26515353152.

It can be written as a sum of positive squares in 2 ways, for example, as 22455322201 + 2680029361 = 149851^2 + 51769^2 .

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

It is not an unprimeable number, because it can be changed into a prime (25135351561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169833383 + ... + 169833530.

Almost surely, 2^25135351562 is an apocalyptic number.

25135351562 is a deficient number, since it is larger than the sum of its proper divisors (13586676634).

25135351562 is a wasteful number, since it uses less digits than its factorization.

25135351562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339666952.

The product of its digits is 135000, while the sum is 38.

The spelling of 25135351562 in words is "twenty-five billion, one hundred thirty-five million, three hundred fifty-one thousand, five hundred sixty-two".