25425312 has 48 divisors (see below), whose sum is σ = 72811872. Its totient is φ = 7704320.

The previous prime is 25425311. The next prime is 25425329. The reversal of 25425312 is 21352452.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (25425311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10983 + ... + 13094.

It is an arithmetic number, because the mean of its divisors is an integer number (1516914).

Almost surely, 2^25425312 is an apocalyptic number.

25425312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25425312 is an abundant number, since it is smaller than the sum of its proper divisors (47386560).

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

25425312 is a wasteful number, since it uses less digits than its factorization.

25425312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24101 (or 24093 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 25425312 is about 5042.3518322307. The cubic root of 25425312 is about 294.0506183380.

Adding to 25425312 its reverse (21352452), we get a palindrome (46777764).

The spelling of 25425312 in words is "twenty-five million, four hundred twenty-five thousand, three hundred twelve".