25342578 has 32 divisors (see below), whose sum is σ = 58262400. Its totient is φ = 8155728.

The previous prime is 25342567. The next prime is 25342579. The reversal of 25342578 is 87524352.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25342579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6526 + ... + 9657.

It is an arithmetic number, because the mean of its divisors is an integer number (1820700).

Almost surely, 2^25342578 is an apocalyptic number.

25342578 is an abundant number, since it is smaller than the sum of its proper divisors (32919822).

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

25342578 is a wasteful number, since it uses less digits than its factorization.

25342578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16223 (or 16217 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 25342578 is about 5034.1412375896. The cubic root of 25342578 is about 293.7313247219.

The spelling of 25342578 in words is "twenty-five million, three hundred forty-two thousand, five hundred seventy-eight".