25213512 has 16 divisors (see below), whose sum is σ = 63033840. Its totient is φ = 8404496.

The previous prime is 25213471. The next prime is 25213519. The reversal of 25213512 is 21531252.

It is not an unprimeable number, because it can be changed into a prime (25213519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525258 + ... + 525305.

It is an arithmetic number, because the mean of its divisors is an integer number (3939615).

Almost surely, 2^25213512 is an apocalyptic number.

It is an amenable number.

25213512 is an abundant number, since it is smaller than the sum of its proper divisors (37820328).

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

25213512 is a wasteful number, since it uses less digits than its factorization.

25213512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050572 (or 1050568 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 25213512 is about 5021.3058062620. The cubic root of 25213512 is about 293.2318324211.

Adding to 25213512 its reverse (21531252), we get a palindrome (46744764).

The spelling of 25213512 in words is "twenty-five million, two hundred thirteen thousand, five hundred twelve".