51914480 has 20 divisors (see below), whose sum is σ = 120701352. Its totient is φ = 20765760.

The previous prime is 51914449. The next prime is 51914483. The reversal of 51914480 is 8441915.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×51914480² = 5390226467340800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51914483) 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, 324386 + ... + 324545.

Almost surely, 2^51914480 is an apocalyptic number.

It is an amenable number.

51914480 is an abundant number, since it is smaller than the sum of its proper divisors (68786872).

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

51914480 is a wasteful number, since it uses less digits than its factorization.

51914480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648944 (or 648938 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 51914480 is about 7205.1703657859. The cubic root of 51914480 is about 373.0463852307.

The spelling of 51914480 in words is "fifty-one million, nine hundred fourteen thousand, four hundred eighty".