51422646 has 16 divisors (see below), whose sum is σ = 112195008. Its totient is φ = 15582600.

The previous prime is 51422629. The next prime is 51422659. The reversal of 51422646 is 64622415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389500 + ... + 389631.

It is an arithmetic number, because the mean of its divisors is an integer number (7012188).

Almost surely, 2^51422646 is an apocalyptic number.

51422646 is an abundant number, since it is smaller than the sum of its proper divisors (60772362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51422646 is a wasteful number, since it uses less digits than its factorization.

51422646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779147.

The product of its digits is 11520, while the sum is 30.

The square root of 51422646 is about 7170.9585133370. The cubic root of 51422646 is about 371.8645737820.

The spelling of 51422646 in words is "fifty-one million, four hundred twenty-two thousand, six hundred forty-six".