25142254254 has 64 divisors (see below), whose sum is σ = 60205178880. Its totient is φ = 7731491040.

The previous prime is 25142254243. The next prime is 25142254289. The reversal of 25142254254 is 45245224152.

25142254254 is a `hidden beast` number, since 2 + 5 + 1 + 4 + 225 + 425 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1286899 + ... + 1306289.

It is an arithmetic number, because the mean of its divisors is an integer number (940705920).

Almost surely, 2^25142254254 is an apocalyptic number.

25142254254 is an abundant number, since it is smaller than the sum of its proper divisors (35062924626).

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

25142254254 is a wasteful number, since it uses less digits than its factorization.

25142254254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21262 (or 21256 counting only the distinct ones).

The product of its digits is 128000, while the sum is 36.

The spelling of 25142254254 in words is "twenty-five billion, one hundred forty-two million, two hundred fifty-four thousand, two hundred fifty-four".