51938480 has 40 divisors (see below), whose sum is σ = 131737104. Its totient is φ = 18886400.

The previous prime is 51938479. The next prime is 51938489. The reversal of 51938480 is 8483915.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (51938489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28631 + ... + 30390.

Almost surely, 2^51938480 is an apocalyptic number.

It is an amenable number.

51938480 is an abundant number, since it is smaller than the sum of its proper divisors (79798624).

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

51938480 is a wasteful number, since it uses less digits than its factorization.

51938480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59045 (or 59039 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 51938480 is about 7206.8356440257. The cubic root of 51938480 is about 373.1038626687.

The spelling of 51938480 in words is "fifty-one million, nine hundred thirty-eight thousand, four hundred eighty".