51521066 has 8 divisors (see below), whose sum is σ = 77324544. Its totient is φ = 25746220.

The previous prime is 51521021. The next prime is 51521077. The reversal of 51521066 is 66012515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1880 + ... + 10323.

It is an arithmetic number, because the mean of its divisors is an integer number (9665568).

Almost surely, 2^51521066 is an apocalyptic number.

51521066 is a deficient number, since it is larger than the sum of its proper divisors (25803478).

51521066 is a wasteful number, since it uses less digits than its factorization.

51521066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14316.

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

The square root of 51521066 is about 7177.8176349083. The cubic root of 51521066 is about 372.1016650870.

The spelling of 51521066 in words is "fifty-one million, five hundred twenty-one thousand, sixty-six".