25516950 has 48 divisors (see below), whose sum is σ = 64251840. Its totient is φ = 6700320.

The previous prime is 25516927. The next prime is 25516951. The reversal of 25516950 is 5961552.

It is a super-2 number, since 2×25516950² = 1302229474605000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25516951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8781 + ... + 11319.

It is an arithmetic number, because the mean of its divisors is an integer number (1338580).

Almost surely, 2^25516950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25516950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32125920).

25516950 is an abundant number, since it is smaller than the sum of its proper divisors (38734890).

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

25516950 is a wasteful number, since it uses less digits than its factorization.

25516950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621 (or 2616 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 25516950 is about 5051.4304904651. The cubic root of 25516950 is about 294.4034675252.

It can be divided in two parts, 255 and 16950, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 25516950 in words is "twenty-five million, five hundred sixteen thousand, nine hundred fifty".