51522633 has 6 divisors (see below), whose sum is σ = 74421594. Its totient is φ = 34348416.

The previous prime is 51522629. The next prime is 51522659. The reversal of 51522633 is 33622515.

51522633 is a `hidden beast` number, since 5 + 1 + 5 + 22 + 633 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48608784 + 2913849 = 6972^2 + 1707^2 .

It is not a de Polignac number, because 51522633 - 2² = 51522629 is a prime.

It is a super-2 number, since 2×51522633² = 5309163422505378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51522597 and 51522606.

It is not an unprimeable number, because it can be changed into a prime (51524633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2862360 + ... + 2862377.

It is an arithmetic number, because the mean of its divisors is an integer number (12403599).

Almost surely, 2^51522633 is an apocalyptic number.

It is an amenable number.

51522633 is a deficient number, since it is larger than the sum of its proper divisors (22898961).

51522633 is a wasteful number, since it uses less digits than its factorization.

51522633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724743 (or 5724740 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 51522633 is about 7177.9267898189. The cubic root of 51522633 is about 372.1054375077.

The spelling of 51522633 in words is "fifty-one million, five hundred twenty-two thousand, six hundred thirty-three".