25158509134 has 32 divisors (see below), whose sum is σ = 44653345632. Its totient is φ = 10500480000.

The previous prime is 25158509111. The next prime is 25158509137. The reversal of 25158509134 is 43190585152.

It is a super-2 number, since 2×25158509134² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25158509137) 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 15 ways as a sum of consecutive naturals, for example, 805017 + ... + 835684.

It is an arithmetic number, because the mean of its divisors is an integer number (1395417051).

Almost surely, 2^25158509134 is an apocalyptic number.

25158509134 is a deficient number, since it is larger than the sum of its proper divisors (19494836498).

25158509134 is a wasteful number, since it uses less digits than its factorization.

25158509134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640772.

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 25158509134 in words is "twenty-five billion, one hundred fifty-eight million, five hundred nine thousand, one hundred thirty-four".