1157025506 has 32 divisors (see below), whose sum is σ = 2158101120. Its totient is φ = 452998656.

The previous prime is 1157025503. The next prime is 1157025509. The reversal of 1157025506 is 6055207511.

It is an interprime number because it is at equal distance from previous prime (1157025503) and next prime (1157025509).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1157025503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15116 + ... + 50423.

It is an arithmetic number, because the mean of its divisors is an integer number (67440660).

Almost surely, 2^1157025506 is an apocalyptic number.

1157025506 is a deficient number, since it is larger than the sum of its proper divisors (1001075614).

1157025506 is a wasteful number, since it uses less digits than its factorization.

1157025506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65658.

The product of its (nonzero) digits is 10500, while the sum is 32.

The square root of 1157025506 is about 34015.0776274287. The cubic root of 1157025506 is about 1049.8187157927.

The spelling of 1157025506 in words is "one billion, one hundred fifty-seven million, twenty-five thousand, five hundred six".