51338424 has 32 divisors (see below), whose sum is σ = 128676240. Its totient is φ = 17068800.

The previous prime is 51338423. The next prime is 51338447. The reversal of 51338424 is 42483315.

It is a super-3 number, since 3×51338424³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51338391 and 51338400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51338423) 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, 7564 + ... + 12644.

Almost surely, 2^51338424 is an apocalyptic number.

It is an amenable number.

51338424 is an abundant number, since it is smaller than the sum of its proper divisors (77337816).

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

51338424 is a wasteful number, since it uses less digits than its factorization.

51338424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511 (or 5507 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 51338424 is about 7165.0836701325. The cubic root of 51338424 is about 371.6614447800.

The spelling of 51338424 in words is "fifty-one million, three hundred thirty-eight thousand, four hundred twenty-four".