51622972 has 12 divisors (see below), whose sum is σ = 91578256. Its totient is φ = 25457760.

The previous prime is 51622969. The next prime is 51622973. The reversal of 51622972 is 27922615.

51622972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51622972² = 5329862476225568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51622973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88104 + ... + 88687.

Almost surely, 2^51622972 is an apocalyptic number.

It is an amenable number.

51622972 is a deficient number, since it is larger than the sum of its proper divisors (39955284).

51622972 is a wasteful number, since it uses less digits than its factorization.

51622972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176868 (or 176866 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 51622972 is about 7184.9128039246. The cubic root of 51622972 is about 372.3468361196.

The spelling of 51622972 in words is "fifty-one million, six hundred twenty-two thousand, nine hundred seventy-two".