51619368 has 32 divisors (see below), whose sum is σ = 130260960. Its totient is φ = 17044800.

The previous prime is 51619367. The next prime is 51619387. The reversal of 51619368 is 86391615.

It is not an unprimeable number, because it can be changed into a prime (51619363) 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 7 ways as a sum of consecutive naturals, for example, 7483 + ... + 12618.

It is an arithmetic number, because the mean of its divisors is an integer number (4070655).

Almost surely, 2^51619368 is an apocalyptic number.

It is an amenable number.

51619368 is an abundant number, since it is smaller than the sum of its proper divisors (78641592).

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

51619368 is a wasteful number, since it uses less digits than its factorization.

51619368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20217 (or 20213 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 51619368 is about 7184.6619962250. The cubic root of 51619368 is about 372.3381709254.

The spelling of 51619368 in words is "fifty-one million, six hundred nineteen thousand, three hundred sixty-eight".