25578151158 has 64 divisors (see below), whose sum is σ = 61736163840. Its totient is φ = 6901500672.

The previous prime is 25578151153. The next prime is 25578151163. The reversal of 25578151158 is 85115187552.

It is an interprime number because it is at equal distance from previous prime (25578151153) and next prime (25578151163).

It is a super-2 number, since 2×25578151158² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25578151153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202410 + ... + 303522.

It is an arithmetic number, because the mean of its divisors is an integer number (964627560).

Almost surely, 2^25578151158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25578151158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30868081920).

25578151158 is an abundant number, since it is smaller than the sum of its proper divisors (36158012682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25578151158 is a wasteful number, since it uses less digits than its factorization.

25578151158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101461.

The product of its digits is 560000, while the sum is 48.

The spelling of 25578151158 in words is "twenty-five billion, five hundred seventy-eight million, one hundred fifty-one thousand, one hundred fifty-eight".