13522572 has 96 divisors (see below), whose sum is σ = 41431040. Its totient is φ = 3732480.

The previous prime is 13522559. The next prime is 13522573. The reversal of 13522572 is 27522531.

13522572 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 (27).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (13522573) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23148 + ... + 23724.

Almost surely, 2^13522572 is an apocalyptic number.

13522572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13522572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20715520).

13522572 is an abundant number, since it is smaller than the sum of its proper divisors (27908468).

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

13522572 is a wasteful number, since it uses less digits than its factorization.

13522572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 620 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 13522572 is about 3677.3049914305. The cubic root of 13522572 is about 238.2427906299.

The spelling of 13522572 in words is "thirteen million, five hundred twenty-two thousand, five hundred seventy-two".