25425603 has 32 divisors (see below), whose sum is σ = 44928000. Its totient is φ = 13894848.

The previous prime is 25425581. The next prime is 25425671. The reversal of 25425603 is 30652452.

25425603 is a `hidden beast` number, since 2 + 54 + 2 + 5 + 603 = 666.

It is not a de Polignac number, because 25425603 - 2⁶ = 25425539 is a prime.

It is a super-2 number, since 2×25425603² = 1292922575827218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25425203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1423 + ... + 7271.

It is an arithmetic number, because the mean of its divisors is an integer number (1404000).

Almost surely, 2^25425603 is an apocalyptic number.

25425603 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25425603 is a deficient number, since it is larger than the sum of its proper divisors (19502397).

25425603 is a wasteful number, since it uses less digits than its factorization.

25425603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888 (or 5882 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25425603 is about 5042.3806877307. The cubic root of 25425603 is about 294.0517401650.

The spelling of 25425603 in words is "twenty-five million, four hundred twenty-five thousand, six hundred three".