25001316 has 18 divisors (see below), whose sum is σ = 63197862. Its totient is φ = 8333760.

The previous prime is 25001303. The next prime is 25001329. The reversal of 25001316 is 61310052.

It is an interprime number because it is at equal distance from previous prime (25001303) and next prime (25001329).

It can be written as a sum of positive squares in only one way, i.e., 23561316 + 1440000 = 4854^2 + 1200^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 347205 + ... + 347276.

Almost surely, 2^25001316 is an apocalyptic number.

It is an amenable number.

25001316 is an abundant number, since it is smaller than the sum of its proper divisors (38196546).

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

25001316 is a wasteful number, since it uses less digits than its factorization.

25001316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694491 (or 694486 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 25001316 is about 5000.1315982682. The cubic root of 25001316 is about 292.4069044077.

Adding to 25001316 its reverse (61310052), we get a palindrome (86311368).

The spelling of 25001316 in words is "twenty-five million, one thousand, three hundred sixteen".