5121566 has 4 divisors (see below), whose sum is σ = 7682352. Its totient is φ = 2560782.

The previous prime is 5121559. The next prime is 5121581. The reversal of 5121566 is 6651215.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280390 + ... + 1280393.

It is an arithmetic number, because the mean of its divisors is an integer number (1920588).

Almost surely, 2^5121566 is an apocalyptic number.

5121566 is a deficient number, since it is larger than the sum of its proper divisors (2560786).

5121566 is a wasteful number, since it uses less digits than its factorization.

5121566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560785.

The product of its digits is 1800, while the sum is 26.

The square root of 5121566 is about 2263.0877137221. The cubic root of 5121566 is about 172.3723455193.

The spelling of 5121566 in words is "five million, one hundred twenty-one thousand, five hundred sixty-six".