25242051 has 8 divisors (see below), whose sum is σ = 35427520. Its totient is φ = 15942312.

The previous prime is 25242047. The next prime is 25242071. The reversal of 25242051 is 15024252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25242051 - 2² = 25242047 is a prime.

It is a super-2 number, since 2×25242051² = 1274322277373202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25242011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221365 + ... + 221478.

It is an arithmetic number, because the mean of its divisors is an integer number (4428440).

Almost surely, 2^25242051 is an apocalyptic number.

25242051 is a deficient number, since it is larger than the sum of its proper divisors (10185469).

25242051 is a wasteful number, since it uses less digits than its factorization.

25242051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442865.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 25242051 is about 5024.1467932376. The cubic root of 25242051 is about 293.3424263997.

The spelling of 25242051 in words is "twenty-five million, two hundred forty-two thousand, fifty-one".