1125520053 has 48 divisors (see below), whose sum is σ = 1776867840. Its totient is φ = 631792224.

The previous prime is 1125520051. The next prime is 1125520079. The reversal of 1125520053 is 3500255211.

It is a happy number.

It is not a de Polignac number, because 1125520053 - 2¹ = 1125520051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125520051) 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 47 ways as a sum of consecutive naturals, for example, 2563608 + ... + 2564046.

It is an arithmetic number, because the mean of its divisors is an integer number (37018080).

Almost surely, 2^1125520053 is an apocalyptic number.

It is an amenable number.

1125520053 is a deficient number, since it is larger than the sum of its proper divisors (651347787).

1125520053 is a wasteful number, since it uses less digits than its factorization.

1125520053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1125520053 is about 33548.7712591683. The cubic root of 1125520053 is about 1040.2021466649.

Adding to 1125520053 its reverse (3500255211), we get a palindrome (4625775264).

The spelling of 1125520053 in words is "one billion, one hundred twenty-five million, five hundred twenty thousand, fifty-three".