25023385 has 4 divisors (see below), whose sum is σ = 30028068. Its totient is φ = 20018704.

The previous prime is 25023373. The next prime is 25023389. The reversal of 25023385 is 58332052.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13927824 + 11095561 = 3732^2 + 3331^2 .

It is a cyclic number.

It is not a de Polignac number, because 25023385 - 2¹⁵ = 24990617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25023389) 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, 2502334 + ... + 2502343.

It is an arithmetic number, because the mean of its divisors is an integer number (7507017).

Almost surely, 2^25023385 is an apocalyptic number.

It is an amenable number.

25023385 is a deficient number, since it is larger than the sum of its proper divisors (5004683).

25023385 is an equidigital number, since it uses as much as digits as its factorization.

25023385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004682.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 25023385 is about 5002.3379533974. The cubic root of 25023385 is about 292.4929162820.

It can be divided in two parts, 25023 and 385, that multiplied together give a triangular number (9633855 = T₄₃₈₉).

The spelling of 25023385 in words is "twenty-five million, twenty-three thousand, three hundred eighty-five".