51522788 has 12 divisors (see below), whose sum is σ = 90301680. Its totient is φ = 25722312.

The previous prime is 51522787. The next prime is 51522797. The reversal of 51522788 is 88722515.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51522781) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6698 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (7525140).

Almost surely, 2^51522788 is an apocalyptic number.

It is an amenable number.

51522788 is a deficient number, since it is larger than the sum of its proper divisors (38778892).

51522788 is a wasteful number, since it uses less digits than its factorization.

51522788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19546 (or 19544 counting only the distinct ones).

The product of its digits is 44800, while the sum is 38.

The square root of 51522788 is about 7177.9375868003. The cubic root of 51522788 is about 372.1058106530.

The spelling of 51522788 in words is "fifty-one million, five hundred twenty-two thousand, seven hundred eighty-eight".