1118512725 has 48 divisors (see below), whose sum is σ = 2021013504. Its totient is φ = 541336000.

The previous prime is 1118512679. The next prime is 1118512757. The reversal of 1118512725 is 5272158111.

It is not a de Polignac number, because 1118512725 - 2⁸ = 1118512469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 47 ways as a sum of consecutive naturals, for example, 711190 + ... + 712760.

It is an arithmetic number, because the mean of its divisors is an integer number (42104448).

Almost surely, 2^1118512725 is an apocalyptic number.

1118512725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1118512725 is a deficient number, since it is larger than the sum of its proper divisors (902500779).

1118512725 is a wasteful number, since it uses less digits than its factorization.

1118512725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458 (or 2453 counting only the distinct ones).

The product of its digits is 5600, while the sum is 33.

The square root of 1118512725 is about 33444.1732593287. The cubic root of 1118512725 is about 1038.0389342059.

The spelling of 1118512725 in words is "one billion, one hundred eighteen million, five hundred twelve thousand, seven hundred twenty-five".