1111253025 has 24 divisors (see below), whose sum is σ = 1945348704. Its totient is φ = 557804800.

The previous prime is 1111253009. The next prime is 1111253029. The reversal of 1111253025 is 5203521111.

It is not a de Polignac number, because 1111253025 - 2⁴ = 1111253009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1111252992 and 1111253010.

It is not an unprimeable number, because it can be changed into a prime (1111253029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434511 + ... + 437060.

It is an arithmetic number, because the mean of its divisors is an integer number (81056196).

Almost surely, 2^1111253025 is an apocalyptic number.

1111253025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111253025 is a deficient number, since it is larger than the sum of its proper divisors (834095679).

1111253025 is a wasteful number, since it uses less digits than its factorization.

1111253025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871601 (or 871596 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1111253025 is about 33335.4619737000. The cubic root of 1111253025 is about 1035.7882627189.

Adding to 1111253025 its reverse (5203521111), we get a palindrome (6314774136).

The spelling of 1111253025 in words is "one billion, one hundred eleven million, two hundred fifty-three thousand, twenty-five".