25021564245150 has 144 divisors (see below), whose sum is σ = 68312028344112. Its totient is φ = 6056541708800.

The previous prime is 25021564245137. The next prime is 25021564245157. The reversal of 25021564245150 is 5154246512052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25021564245157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10796362 + ... + 12907538.

It is an arithmetic number, because the mean of its divisors is an integer number (474389085723).

Almost surely, 2^{25021564245150} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25021564245150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34156014172056).

25021564245150 is an abundant number, since it is smaller than the sum of its proper divisors (43290464098962).

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

25021564245150 is a wasteful number, since it uses less digits than its factorization.

25021564245150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111867 (or 2111851 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 42.

The spelling of 25021564245150 in words is "twenty-five trillion, twenty-one billion, five hundred sixty-four million, two hundred forty-five thousand, one hundred fifty".