25750380 has 48 divisors (see below), whose sum is σ = 72334080. Its totient is φ = 6844608.

The previous prime is 25750369. The next prime is 25750391. The reversal of 25750380 is 8305752.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25750369) and next prime (25750391).

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 27561 + ... + 28479.

It is an arithmetic number, because the mean of its divisors is an integer number (1506960).

Almost surely, 2^25750380 is an apocalyptic number.

25750380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25750380 is an abundant number, since it is smaller than the sum of its proper divisors (46583700).

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

25750380 is a wasteful number, since it uses less digits than its factorization.

25750380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398 (or 1396 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 25750380 is about 5074.4832249205. The cubic root of 25750380 is about 295.2984817679.

The spelling of 25750380 in words is "twenty-five million, seven hundred fifty thousand, three hundred eighty".