25022993 has 8 divisors (see below), whose sum is σ = 25701480. Its totient is φ = 24353280.

The previous prime is 25022939. The next prime is 25022999. The reversal of 25022993 is 39922052.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4293184 + 20729809 = 2072^2 + 4553^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25022993 - 2²⁰ = 23974417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25022999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3803 + ... + 8031.

It is an arithmetic number, because the mean of its divisors is an integer number (3212685).

Almost surely, 2^25022993 is an apocalyptic number.

It is an amenable number.

25022993 is a deficient number, since it is larger than the sum of its proper divisors (678487).

25022993 is an equidigital number, since it uses as much as digits as its factorization.

25022993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4387.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 25022993 is about 5002.2987715649. The cubic root of 25022993 is about 292.4913889398.

The spelling of 25022993 in words is "twenty-five million, twenty-two thousand, nine hundred ninety-three".