13725570 has 32 divisors (see below), whose sum is σ = 33747840. Its totient is φ = 3570560.

The previous prime is 13725559. The next prime is 13725587. The reversal of 13725570 is 7552731.

13725570 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 a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4350 + ... + 6809.

It is an arithmetic number, because the mean of its divisors is an integer number (1054620).

Almost surely, 2^13725570 is an apocalyptic number.

13725570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13725570 is an abundant number, since it is smaller than the sum of its proper divisors (20022270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13725570 is a wasteful number, since it uses less digits than its factorization.

13725570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11210.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 13725570 is about 3704.8036385212. The cubic root of 13725570 is about 239.4290246347.

The spelling of 13725570 in words is "thirteen million, seven hundred twenty-five thousand, five hundred seventy".