1120155525 has 36 divisors (see below), whose sum is σ = 2008569732. Its totient is φ = 596747520.

The previous prime is 1120155523. The next prime is 1120155527. The reversal of 1120155525 is 5255510211.

1120155525 is a `hidden beast` number, since 1 + 120 + 15 + 5 + 525 = 666.

It is an interprime number because it is at equal distance from previous prime (1120155523) and next prime (1120155527).

It can be written as a sum of positive squares in 6 ways, for example, as 113870241 + 1006285284 = 10671^2 + 31722^2 .

It is not a de Polignac number, because 1120155525 - 2¹ = 1120155523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120155523) 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 35 ways as a sum of consecutive naturals, for example, 249097 + ... + 253553.

Almost surely, 2^1120155525 is an apocalyptic number.

1120155525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1120155525 is a deficient number, since it is larger than the sum of its proper divisors (888414207).

1120155525 is a wasteful number, since it uses less digits than its factorization.

1120155525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5590 (or 5582 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 1120155525 is about 33468.7245798223. The cubic root of 1120155525 is about 1038.5468873505.

Adding to 1120155525 its reverse (5255510211), we get a palindrome (6375665736).

The spelling of 1120155525 in words is "one billion, one hundred twenty million, one hundred fifty-five thousand, five hundred twenty-five".