25152451 has 4 divisors (see below), whose sum is σ = 25194904. Its totient is φ = 25110000.

The previous prime is 25152437. The next prime is 25152481. The reversal of 25152451 is 15425152.

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

It is a cyclic number.

It is not a de Polignac number, because 25152451 - 2⁵ = 25152419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25152481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20325 + ... + 21526.

It is an arithmetic number, because the mean of its divisors is an integer number (6298726).

Almost surely, 2^25152451 is an apocalyptic number.

25152451 is a deficient number, since it is larger than the sum of its proper divisors (42453).

25152451 is an equidigital number, since it uses as much as digits as its factorization.

25152451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42452.

The product of its digits is 2000, while the sum is 25.

The square root of 25152451 is about 5015.2219292869. The cubic root of 25152451 is about 292.9949289931.

The spelling of 25152451 in words is "twenty-five million, one hundred fifty-two thousand, four hundred fifty-one".