1525572 has 36 divisors (see below), whose sum is σ = 3983616. Its totient is φ = 491760.

The previous prime is 1525571. The next prime is 1525607. The reversal of 1525572 is 2755251.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433 + ... + 1799.

It is an arithmetic number, because the mean of its divisors is an integer number (110656).

2^1525572 is an apocalyptic number.

1525572 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 1525572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1991808).

1525572 is an abundant number, since it is smaller than the sum of its proper divisors (2458044).

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

1525572 is a wasteful number, since it uses less digits than its factorization.

1525572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408 (or 1403 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 1525572 is about 1235.1404778405. The cubic root of 1525572 is about 115.1182652286.

The spelling of 1525572 in words is "one million, five hundred twenty-five thousand, five hundred seventy-two".