1172566425 has 24 divisors (see below), whose sum is σ = 2005496640. Its totient is φ = 603803200.

The previous prime is 1172566411. The next prime is 1172566463. The reversal of 1172566425 is 5246652711.

It is not a de Polignac number, because 1172566425 - 2⁵ = 1172566393 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 267381 + ... + 271730.

It is an arithmetic number, because the mean of its divisors is an integer number (83562360).

Almost surely, 2^1172566425 is an apocalyptic number.

1172566425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1172566425 is a deficient number, since it is larger than the sum of its proper divisors (832930215).

1172566425 is a wasteful number, since it uses less digits than its factorization.

1172566425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539153 (or 539148 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 1172566425 is about 34242.7572633981. The cubic root of 1172566425 is about 1054.4981403471.

The spelling of 1172566425 in words is "one billion, one hundred seventy-two million, five hundred sixty-six thousand, four hundred twenty-five".