25162555152 has 160 divisors (see below), whose sum is σ = 78682424320. Its totient is φ = 6768852480.

The previous prime is 25162555097. The next prime is 25162555157. The reversal of 25162555152 is 25155526152.

It is a self number, because there is not a number n which added to its sum of digits gives 25162555152.

It is not an unprimeable number, because it can be changed into a prime (25162555157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1028502 + ... + 1052682.

It is an arithmetic number, because the mean of its divisors is an integer number (491765152).

Almost surely, 2^25162555152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25162555152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39341212160).

25162555152 is an abundant number, since it is smaller than the sum of its proper divisors (53519869168).

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

25162555152 is a wasteful number, since it uses less digits than its factorization.

25162555152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24381 (or 24375 counting only the distinct ones).

The product of its digits is 150000, while the sum is 39.

The spelling of 25162555152 in words is "twenty-five billion, one hundred sixty-two million, five hundred fifty-five thousand, one hundred fifty-two".