25070816 has 48 divisors (see below), whose sum is σ = 51609600. Its totient is φ = 11975040.

The previous prime is 25070783. The next prime is 25070821. The reversal of 25070816 is 61807052.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 125885 + ... + 126083.

It is an arithmetic number, because the mean of its divisors is an integer number (1075200).

Almost surely, 2^25070816 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 25070816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25804800).

25070816 is an abundant number, since it is smaller than the sum of its proper divisors (26538784).

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

25070816 is a wasteful number, since it uses less digits than its factorization.

25070816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 25070816 is about 5007.0765921843. The cubic root of 25070816 is about 292.6776031968.

Adding to 25070816 its reverse (61807052), we get a palindrome (86877868).

The spelling of 25070816 in words is "twenty-five million, seventy thousand, eight hundred sixteen".