25142516 has 12 divisors (see below), whose sum is σ = 50285088. Its totient is φ = 10775352.

The previous prime is 25142503. The next prime is 25142527. The reversal of 25142516 is 61524152.

25142516 is an admirable number.

It is a super-3 number, since 3×25142516³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 448946 + ... + 449001.

It is an arithmetic number, because the mean of its divisors is an integer number (4190424).

Almost surely, 2^25142516 is an apocalyptic number.

It is an amenable number.

25142516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25142516 is a wasteful number, since it uses less digits than its factorization.

25142516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897958 (or 897956 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 25142516 is about 5014.2313468766. The cubic root of 25142516 is about 292.9563470942.

Adding to 25142516 its reverse (61524152), we get a palindrome (86666668).

The spelling of 25142516 in words is "twenty-five million, one hundred forty-two thousand, five hundred sixteen".