25378603 has 4 divisors (see below), whose sum is σ = 26871480. Its totient is φ = 23885728.

The previous prime is 25378601. The next prime is 25378609. The reversal of 25378603 is 30687352.

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 25378603 - 2¹ = 25378601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25378601) 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, 746413 + ... + 746446.

It is an arithmetic number, because the mean of its divisors is an integer number (6717870).

Almost surely, 2^25378603 is an apocalyptic number.

25378603 is a deficient number, since it is larger than the sum of its proper divisors (1492877).

25378603 is a wasteful number, since it uses less digits than its factorization.

25378603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492876.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 25378603 is about 5037.7180349837. The cubic root of 25378603 is about 293.8704405465.

The spelling of 25378603 in words is "twenty-five million, three hundred seventy-eight thousand, six hundred three".