25061541516 has 72 divisors (see below), whose sum is σ = 69237434448. Its totient is φ = 7580304000.

The previous prime is 25061541503. The next prime is 25061541563. The reversal of 25061541516 is 61514516052.

25061541516 is a `hidden beast` number, since 2 + 5 + 0 + 61 + 541 + 51 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 155746 + ... + 272726.

It is an arithmetic number, because the mean of its divisors is an integer number (961631034).

Almost surely, 2^25061541516 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 25061541516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34618717224).

25061541516 is an abundant number, since it is smaller than the sum of its proper divisors (44175892932).

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

25061541516 is a wasteful number, since it uses less digits than its factorization.

25061541516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117543 (or 117538 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 25061541516 in words is "twenty-five billion, sixty-one million, five hundred forty-one thousand, five hundred sixteen".