1525879 has 4 divisors (see below), whose sum is σ = 1535184. Its totient is φ = 1516576.

The previous prime is 1525877. The next prime is 1525921. The reversal of 1525879 is 9785251.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1525879 - 2¹ = 1525877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4402 + ... + 4735.

It is an arithmetic number, because the mean of its divisors is an integer number (383796).

2^1525879 is an apocalyptic number.

1525879 is a deficient number, since it is larger than the sum of its proper divisors (9305).

1525879 is an equidigital number, since it uses as much as digits as its factorization.

1525879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9304.

The product of its digits is 25200, while the sum is 37.

The square root of 1525879 is about 1235.2647489506. The cubic root of 1525879 is about 115.1259866903.

The spelling of 1525879 in words is "one million, five hundred twenty-five thousand, eight hundred seventy-nine".