1825538715 has 384 divisors, whose sum is σ = 4696473600. Its totient is φ = 655050240.

The previous prime is 1825538713. The next prime is 1825538801. The reversal of 1825538715 is 5178355281.

1825538715 is a `hidden beast` number, since 1 + 8 + 2 + 553 + 87 + 15 = 666.

It is not a de Polignac number, because 1825538715 - 2¹ = 1825538713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1825538711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 23108046 + ... + 23108124.

It is an arithmetic number, because the mean of its divisors is an integer number (12230400).

Almost surely, 2^1825538715 is an apocalyptic number.

1825538715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1825538715 is an abundant number, since it is smaller than the sum of its proper divisors (2870934885).

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

1825538715 is a wasteful number, since it uses less digits than its factorization.

1825538715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 137 counting only the distinct ones).

The product of its digits is 336000, while the sum is 45.

The square root of 1825538715 is about 42726.3234435166. The cubic root of 1825538715 is about 1222.1664263586.

The spelling of 1825538715 in words is "one billion, eight hundred twenty-five million, five hundred thirty-eight thousand, seven hundred fifteen".