51938496 has 140 divisors (see below), whose sum is σ = 158218632. Its totient is φ = 16837632.

The previous prime is 51938489. The next prime is 51938521. The reversal of 51938496 is 69483915.

It is a happy number.

It is a super-4 number, since 4×51938496⁴ (a number of 32 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 222796 + ... + 223028.

Almost surely, 2^51938496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51938496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79109316).

51938496 is an abundant number, since it is smaller than the sum of its proper divisors (106280136).

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

51938496 is a wasteful number, since it uses less digits than its factorization.

51938496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 281 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 51938496 is about 7206.8367540829. The cubic root of 51938496 is about 373.1039009811.

It can be divided in two parts, 5193 and 8496, that added together give a square (13689 = 117²).

The spelling of 51938496 in words is "fifty-one million, nine hundred thirty-eight thousand, four hundred ninety-six".