51535938 has 8 divisors (see below), whose sum is σ = 103071888. Its totient is φ = 17178644.

The previous prime is 51535933. The next prime is 51535943. The reversal of 51535938 is 83953515.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51535933) and next prime (51535943).

It is a sphenic number, since it is the product of 3 distinct primes.

51535938 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51535896 and 51535905.

It is not an unprimeable number, because it can be changed into a prime (51535933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4294656 + ... + 4294667.

It is an arithmetic number, because the mean of its divisors is an integer number (12883986).

Almost surely, 2^51535938 is an apocalyptic number.

51535938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51535938 is a wasteful number, since it uses less digits than its factorization.

51535938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8589328.

The product of its digits is 81000, while the sum is 39.

The square root of 51535938 is about 7178.8535296383. The cubic root of 51535938 is about 372.1374650941.

The spelling of 51535938 in words is "fifty-one million, five hundred thirty-five thousand, nine hundred thirty-eight".