51722448 has 40 divisors (see below), whose sum is σ = 137232288. Its totient is φ = 16774272.

The previous prime is 51722417. The next prime is 51722467. The reversal of 51722448 is 84422715.

It is a super-2 number, since 2×51722448² = 5350423254225408, which contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 12786 + ... + 16337.

Almost surely, 2^51722448 is an apocalyptic number.

It is an amenable number.

51722448 is an abundant number, since it is smaller than the sum of its proper divisors (85509840).

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

51722448 is a wasteful number, since it uses less digits than its factorization.

51722448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29171 (or 29165 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 51722448 is about 7191.8320336337. The cubic root of 51722448 is about 372.5858499183.

The spelling of 51722448 in words is "fifty-one million, seven hundred twenty-two thousand, four hundred forty-eight".