1161563025 has 96 divisors (see below), whose sum is σ = 2285568000. Its totient is φ = 509356800.

The previous prime is 1161562931. The next prime is 1161563027. The reversal of 1161563025 is 5203651611.

It is not a de Polignac number, because 1161563025 - 2²⁰ = 1160514449 is a prime.

It is a super-2 number, since 2×1161563025² = 2698457322094301250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1161562983 and 1161563001.

It is not an unprimeable number, because it can be changed into a prime (1161563027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2424736 + ... + 2425214.

It is an arithmetic number, because the mean of its divisors is an integer number (23808000).

Almost surely, 2^1161563025 is an apocalyptic number.

1161563025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1161563025 is a deficient number, since it is larger than the sum of its proper divisors (1124004975).

1161563025 is a wasteful number, since it uses less digits than its factorization.

1161563025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1161563025 is about 34081.7110045843. The cubic root of 1161563025 is about 1051.1892873602.

The spelling of 1161563025 in words is "one billion, one hundred sixty-one million, five hundred sixty-three thousand, twenty-five".