1538272825 has 12 divisors (see below), whose sum is σ = 1908620028. Its totient is φ = 1229868800.

The previous prime is 1538272811. The next prime is 1538272843. The reversal of 1538272825 is 5282728351.

1538272825 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 77580864 + 1460691961 = 8808^2 + 38219^2 .

It is not a de Polignac number, because 1538272825 - 2²⁹ = 1001401913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25149 + ... + 60901.

It is an arithmetic number, because the mean of its divisors is an integer number (159051669).

Almost surely, 2^1538272825 is an apocalyptic number.

It is an amenable number.

1538272825 is a deficient number, since it is larger than the sum of its proper divisors (370347203).

1538272825 is a wasteful number, since it uses less digits than its factorization.

1538272825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37484 (or 37479 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 1538272825 is about 39220.8213198041. The cubic root of 1538272825 is about 1154.3684696824.

The spelling of 1538272825 in words is "one billion, five hundred thirty-eight million, two hundred seventy-two thousand, eight hundred twenty-five".