25283616 has 48 divisors (see below), whose sum is σ = 67040064. Its totient is φ = 8342784.

The previous prime is 25283581. The next prime is 25283651. The reversal of 25283616 is 61638252.

It is an interprime number because it is at equal distance from previous prime (25283581) and next prime (25283651).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×25283616² = 1278522476070912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8610 + ... + 11166.

It is an arithmetic number, because the mean of its divisors is an integer number (1396668).

Almost surely, 2^25283616 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 25283616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33520032).

25283616 is an abundant number, since it is smaller than the sum of its proper divisors (41756448).

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

25283616 is a wasteful number, since it uses less digits than its factorization.

25283616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2665 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 25283616 is about 5028.2816150252. The cubic root of 25283616 is about 293.5033495570.

The spelling of 25283616 in words is "twenty-five million, two hundred eighty-three thousand, six hundred sixteen".