25122416 has 40 divisors (see below), whose sum is σ = 53382000. Its totient is φ = 11358720.

The previous prime is 25122403. The next prime is 25122451. The reversal of 25122416 is 61422152.

It is a happy number.

It is a super-2 number, since 2×25122416² = 1262271571354112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25122391 and 25122400.

It is a congruent number.

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, 61220 + ... + 61628.

It is an arithmetic number, because the mean of its divisors is an integer number (1334550).

Almost surely, 2^25122416 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 25122416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26691000).

25122416 is an abundant number, since it is smaller than the sum of its proper divisors (28259584).

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

25122416 is a wasteful number, since it uses less digits than its factorization.

25122416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777 (or 771 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 25122416 is about 5012.2266509008. The cubic root of 25122416 is about 292.8782590139.

Adding to 25122416 its reverse (61422152), we get a palindrome (86544568).

The spelling of 25122416 in words is "twenty-five million, one hundred twenty-two thousand, four hundred sixteen".