13525730 has 16 divisors (see below), whose sum is σ = 24414264. Its totient is φ = 5395200.

The previous prime is 13525723. The next prime is 13525747. The reversal of 13525730 is 3752531.

13525730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12880921 + 644809 = 3589^2 + 803^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13525730.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2324 + ... + 5696.

Almost surely, 2^13525730 is an apocalyptic number.

13525730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13525730 is a deficient number, since it is larger than the sum of its proper divisors (10888534).

13525730 is a wasteful number, since it uses less digits than its factorization.

13525730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 13525730 is about 3677.7343569105. The cubic root of 13525730 is about 238.2613352325.

The spelling of 13525730 in words is "thirteen million, five hundred twenty-five thousand, seven hundred thirty".