25152012 has 48 divisors (see below), whose sum is σ = 65479680. Its totient is φ = 8349264.

The previous prime is 25151933. The next prime is 25152013. The reversal of 25152012 is 21025152.

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

It is not an unprimeable number, because it can be changed into a prime (25152013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49753 + ... + 50255.

It is an arithmetic number, because the mean of its divisors is an integer number (1364160).

Almost surely, 2^25152012 is an apocalyptic number.

It is an amenable number.

25152012 is an abundant number, since it is smaller than the sum of its proper divisors (40327668).

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

25152012 is a wasteful number, since it uses less digits than its factorization.

25152012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 25152012 is about 5015.1781623388. The cubic root of 25152012 is about 292.9932243810.

Adding to 25152012 its reverse (21025152), we get a palindrome (46177164).

The spelling of 25152012 in words is "twenty-five million, one hundred fifty-two thousand, twelve".