1525422867 has 8 divisors (see below), whose sum is σ = 2034462096. Its totient is φ = 1016666112.

The previous prime is 1525422863. The next prime is 1525422883. The reversal of 1525422867 is 7682245251.

1525422867 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1525422867 - 2² = 1525422863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1525422863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57678 + ... + 79859.

It is an arithmetic number, because the mean of its divisors is an integer number (254307762).

Almost surely, 2^1525422867 is an apocalyptic number.

1525422867 is a deficient number, since it is larger than the sum of its proper divisors (509039229).

1525422867 is a wasteful number, since it uses less digits than its factorization.

1525422867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141237.

The product of its digits is 268800, while the sum is 42.

The square root of 1525422867 is about 39056.6622613863. The cubic root of 1525422867 is about 1151.1451395990.

The spelling of 1525422867 in words is "one billion, five hundred twenty-five million, four hundred twenty-two thousand, eight hundred sixty-seven".