51344984 has 8 divisors (see below), whose sum is σ = 96271860. Its totient is φ = 25672488.

The previous prime is 51344977. The next prime is 51344987. The reversal of 51344984 is 48944315.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51344987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3209054 + ... + 3209069.

Almost surely, 2^51344984 is an apocalyptic number.

It is an amenable number.

51344984 is a deficient number, since it is larger than the sum of its proper divisors (44926876).

51344984 is a wasteful number, since it uses less digits than its factorization.

51344984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6418129 (or 6418125 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 51344984 is about 7165.5414310434. The cubic root of 51344984 is about 371.6772743481.

The spelling of 51344984 in words is "fifty-one million, three hundred forty-four thousand, nine hundred eighty-four".