25142051 has 4 divisors (see below), whose sum is σ = 27427704. Its totient is φ = 22856400.

The previous prime is 25142041. The next prime is 25142077. The reversal of 25142051 is 15024152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25142051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25142021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142810 + ... + 1142831.

It is an arithmetic number, because the mean of its divisors is an integer number (6856926).

Almost surely, 2^25142051 is an apocalyptic number.

25142051 is a deficient number, since it is larger than the sum of its proper divisors (2285653).

25142051 is a wasteful number, since it uses less digits than its factorization.

25142051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285652.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 25142051 is about 5014.1849786381. The cubic root of 25142051 is about 292.9545410493.

The spelling of 25142051 in words is "twenty-five million, one hundred forty-two thousand, fifty-one".