25120740 has 48 divisors (see below), whose sum is σ = 70555968. Its totient is φ = 6678144.

The previous prime is 25120721. The next prime is 25120787. The reversal of 25120740 is 4702152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36439 + ... + 37121.

It is an arithmetic number, because the mean of its divisors is an integer number (1469916).

Almost surely, 2^25120740 is an apocalyptic number.

25120740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25120740 is an abundant number, since it is smaller than the sum of its proper divisors (45435228).

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

25120740 is a wasteful number, since it uses less digits than its factorization.

25120740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 25120740 is about 5012.0594569498. The cubic root of 25120740 is about 292.8717459079.

Adding to 25120740 its reverse (4702152), we get a palindrome (29822892).

The spelling of 25120740 in words is "twenty-five million, one hundred twenty thousand, seven hundred forty".