1115415025 has 12 divisors (see below), whose sum is σ = 1384595532. Its totient is φ = 891376640.

The previous prime is 1115414953. The next prime is 1115415029. The reversal of 1115415025 is 5205145111.

It can be written as a sum of positive squares in 6 ways, for example, as 3125824 + 1112289201 = 1768^2 + 33351^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1115415025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115415029) 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 11 ways as a sum of consecutive naturals, for example, 417 + ... + 47233.

It is an arithmetic number, because the mean of its divisors is an integer number (115382961).

Almost surely, 2^1115415025 is an apocalyptic number.

It is an amenable number.

1115415025 is a deficient number, since it is larger than the sum of its proper divisors (269180507).

1115415025 is an equidigital number, since it uses as much as digits as its factorization.

1115415025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47780 (or 47775 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 1115415025 is about 33397.8296450533. The cubic root of 1115415025 is about 1037.0797717505.

The spelling of 1115415025 in words is "one billion, one hundred fifteen million, four hundred fifteen thousand, twenty-five".