25315016 has 8 divisors (see below), whose sum is σ = 47465670. Its totient is φ = 12657504.

The previous prime is 25315007. The next prime is 25315027. The reversal of 25315016 is 61051352.

It can be written as a sum of positive squares in only one way, i.e., 14092516 + 11222500 = 3754^2 + 3350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 25314982 and 25315000.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1582181 + ... + 1582196.

Almost surely, 2^25315016 is an apocalyptic number.

It is an amenable number.

25315016 is a deficient number, since it is larger than the sum of its proper divisors (22150654).

25315016 is a wasteful number, since it uses less digits than its factorization.

25315016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3164383 (or 3164379 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 25315016 is about 5031.4029852517. The cubic root of 25315016 is about 293.6248009698.

Adding to 25315016 its reverse (61051352), we get a palindrome (86366368).

The spelling of 25315016 in words is "twenty-five million, three hundred fifteen thousand, sixteen".