1115051025 has 48 divisors (see below), whose sum is σ = 2044208448. Its totient is φ = 531744000.

The previous prime is 1115051023. The next prime is 1115051027. The reversal of 1115051025 is 5201505111.

It is an interprime number because it is at equal distance from previous prime (1115051023) and next prime (1115051027).

It is not a de Polignac number, because 1115051025 - 2¹ = 1115051023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1115050992 and 1115051010.

It is not an unprimeable number, because it can be changed into a prime (1115051023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39247 + ... + 61403.

It is an arithmetic number, because the mean of its divisors is an integer number (42587676).

Almost surely, 2^1115051025 is an apocalyptic number.

1115051025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1115051025 is a deficient number, since it is larger than the sum of its proper divisors (929157423).

1115051025 is a wasteful number, since it uses less digits than its factorization.

1115051025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22242 (or 22237 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 21.

The square root of 1115051025 is about 33392.3797444866. The cubic root of 1115051025 is about 1036.9669473459.

Adding to 1115051025 its reverse (5201505111), we get a palindrome (6316556136).

The spelling of 1115051025 in words is "one billion, one hundred fifteen million, fifty-one thousand, twenty-five".