1157526053 has 4 divisors (see below), whose sum is σ = 1157625420. Its totient is φ = 1157426688.

The previous prime is 1157526049. The next prime is 1157526067. The reversal of 1157526053 is 3506257511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 996159844 + 161366209 = 31562^2 + 12703^2 .

It is a cyclic number.

It is not a de Polignac number, because 1157526053 - 2² = 1157526049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157526353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29468 + ... + 56421.

It is an arithmetic number, because the mean of its divisors is an integer number (289406355).

Almost surely, 2^1157526053 is an apocalyptic number.

It is an amenable number.

1157526053 is a deficient number, since it is larger than the sum of its proper divisors (99367).

1157526053 is an equidigital number, since it uses as much as digits as its factorization.

1157526053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99366.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 1157526053 is about 34022.4345542761. The cubic root of 1157526053 is about 1049.9700831990.

The spelling of 1157526053 in words is "one billion, one hundred fifty-seven million, five hundred twenty-six thousand, fifty-three".