25293740 has 12 divisors (see below), whose sum is σ = 53116896. Its totient is φ = 10117488.

The previous prime is 25293689. The next prime is 25293791. The reversal of 25293740 is 4739252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25293689) and next prime (25293791).

It is a junction number, because it is equal to n+sod(n) for n = 25293697 and 25293706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632324 + ... + 632363.

It is an arithmetic number, because the mean of its divisors is an integer number (4426408).

Almost surely, 2^25293740 is an apocalyptic number.

25293740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25293740 is an abundant number, since it is smaller than the sum of its proper divisors (27823156).

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

25293740 is a wasteful number, since it uses less digits than its factorization.

25293740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264696 (or 1264694 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 25293740 is about 5029.2882200168. The cubic root of 25293740 is about 293.5425189463.

The spelling of 25293740 in words is "twenty-five million, two hundred ninety-three thousand, seven hundred forty".