25860416 has 28 divisors (see below), whose sum is σ = 51828192. Its totient is φ = 12801408.

The previous prime is 25860407. The next prime is 25860493. The reversal of 25860416 is 61406852.

It is a super-2 number, since 2×25860416² = 1337522231386112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4631 + ... + 8553.

Almost surely, 2^25860416 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 25860416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25914096).

25860416 is an abundant number, since it is smaller than the sum of its proper divisors (25967776).

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

25860416 is a wasteful number, since it uses less digits than its factorization.

25860416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038 (or 4028 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 25860416 is about 5085.3137562986. The cubic root of 25860416 is about 295.7185052113.

The spelling of 25860416 in words is "twenty-five million, eight hundred sixty thousand, four hundred sixteen".