13633725 has 24 divisors (see below), whose sum is σ = 25762240. Its totient is φ = 6232320.

The previous prime is 13633717. The next prime is 13633747. The reversal of 13633725 is 52733631.

It is not a de Polignac number, because 13633725 - 2³ = 13633717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13633692 and 13633701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12460 + ... + 13509.

Almost surely, 2^13633725 is an apocalyptic number.

13633725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13633725 is a deficient number, since it is larger than the sum of its proper divisors (12128515).

13633725 is a wasteful number, since it uses less digits than its factorization.

13633725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25989 (or 25984 counting only the distinct ones).

The product of its digits is 11340, while the sum is 30.

The square root of 13633725 is about 3692.3874390427. The cubic root of 13633725 is about 238.8937805220.

The spelling of 13633725 in words is "thirteen million, six hundred thirty-three thousand, seven hundred twenty-five".