25715016 has 128 divisors (see below), whose sum is σ = 77760000. Its totient is φ = 7842816.

The previous prime is 25715009. The next prime is 25715021. The reversal of 25715016 is 61051752.

It is a super-2 number, since 2×25715016² = 1322524095760512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172510 + ... + 172658.

It is an arithmetic number, because the mean of its divisors is an integer number (607500).

Almost surely, 2^25715016 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 25715016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38880000).

25715016 is an abundant number, since it is smaller than the sum of its proper divisors (52044984).

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

25715016 is a wasteful number, since it uses less digits than its factorization.

25715016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 25715016 is about 5070.9975350024. The cubic root of 25715016 is about 295.1632382009.

Adding to 25715016 its reverse (61051752), we get a palindrome (86766768).

The spelling of 25715016 in words is "twenty-five million, seven hundred fifteen thousand, sixteen".