25903534 has 4 divisors (see below), whose sum is σ = 38855304. Its totient is φ = 12951766.

The previous prime is 25903481. The next prime is 25903601. The reversal of 25903534 is 43530952.

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

It is a junction number, because it is equal to n+sod(n) for n = 25903496 and 25903505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6475882 + ... + 6475885.

It is an arithmetic number, because the mean of its divisors is an integer number (9713826).

Almost surely, 2^25903534 is an apocalyptic number.

25903534 is a deficient number, since it is larger than the sum of its proper divisors (12951770).

25903534 is a wasteful number, since it uses less digits than its factorization.

25903534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12951769.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 25903534 is about 5089.5514537138. The cubic root of 25903534 is about 295.8827679781.

The spelling of 25903534 in words is "twenty-five million, nine hundred three thousand, five hundred thirty-four".