1120520525 has 12 divisors (see below), whose sum is σ = 1392223392. Its totient is φ = 894624240.

The previous prime is 1120520491. The next prime is 1120520539. The reversal of 1120520525 is 5250250211.

It is a de Polignac number, because none of the positive numbers 2^k-1120520525 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1120520525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31979 + ... + 57128.

It is an arithmetic number, because the mean of its divisors is an integer number (116018616).

Almost surely, 2^1120520525 is an apocalyptic number.

It is an amenable number.

1120520525 is a deficient number, since it is larger than the sum of its proper divisors (271702867).

1120520525 is an equidigital number, since it uses as much as digits as its factorization.

1120520525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89620 (or 89615 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1120520525 is about 33474.1769876423. The cubic root of 1120520525 is about 1038.6596777740.

Adding to 1120520525 its reverse (5250250211), we get a palindrome (6370770736).

The spelling of 1120520525 in words is "one billion, one hundred twenty million, five hundred twenty thousand, five hundred twenty-five".