13250385 has 20 divisors (see below), whose sum is σ = 23753268. Its totient is φ = 7066656.

The previous prime is 13250383. The next prime is 13250387. The reversal of 13250385 is 58305231.

13250385 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13250383) and next prime (13250387).

It can be written as a sum of positive squares in 2 ways, for example, as 8928144 + 4322241 = 2988^2 + 2079^2 .

It is not a de Polignac number, because 13250385 - 2¹ = 13250383 is a prime.

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 (13250383) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15954 + ... + 16763.

Almost surely, 2^13250385 is an apocalyptic number.

13250385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13250385 is a deficient number, since it is larger than the sum of its proper divisors (10502883).

13250385 is an equidigital number, since it uses as much as digits as its factorization.

13250385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32734 (or 32725 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 13250385 is about 3640.1078280732. The cubic root of 13250385 is about 236.6334664354.

The spelling of 13250385 in words is "thirteen million, two hundred fifty thousand, three hundred eighty-five".