51633146 has 16 divisors (see below), whose sum is σ = 81987360. Its totient is φ = 24319440.

The previous prime is 51633143. The next prime is 51633149. The reversal of 51633146 is 64133615.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51633143) and next prime (51633149).

It is not an unprimeable number, because it can be changed into a prime (51633143) 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 7 ways as a sum of consecutive naturals, for example, 3125 + ... + 10631.

It is an arithmetic number, because the mean of its divisors is an integer number (5124210).

Almost surely, 2^51633146 is an apocalyptic number.

51633146 is a deficient number, since it is larger than the sum of its proper divisors (30354214).

51633146 is a wasteful number, since it uses less digits than its factorization.

51633146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709.

The product of its digits is 6480, while the sum is 29.

The square root of 51633146 is about 7185.6207804197. The cubic root of 51633146 is about 372.3712955655.

The spelling of 51633146 in words is "fifty-one million, six hundred thirty-three thousand, one hundred forty-six".