1115887725 has 24 divisors (see below), whose sum is σ = 2049928320. Its totient is φ = 595139760.

The previous prime is 1115887657. The next prime is 1115887739. The reversal of 1115887725 is 5277885111.

It is not a de Polignac number, because 1115887725 - 2¹¹ = 1115885677 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 825909 + ... + 827258.

It is an arithmetic number, because the mean of its divisors is an integer number (85413680).

Almost surely, 2^1115887725 is an apocalyptic number.

1115887725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1115887725 is a deficient number, since it is larger than the sum of its proper divisors (934040595).

1115887725 is a wasteful number, since it uses less digits than its factorization.

1115887725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653186 (or 1653175 counting only the distinct ones).

The product of its digits is 156800, while the sum is 45.

The square root of 1115887725 is about 33404.9057026060. The cubic root of 1115887725 is about 1037.2262518685.

The spelling of 1115887725 in words is "one billion, one hundred fifteen million, eight hundred eighty-seven thousand, seven hundred twenty-five".