51936450 has 48 divisors (see below), whose sum is σ = 129711936. Its totient is φ = 13752000.

The previous prime is 51936433. The next prime is 51936473. The reversal of 51936450 is 5463915.

It is a happy number.

It is a super-3 number, since 3×51936450³ (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21504 + ... + 23796.

It is an arithmetic number, because the mean of its divisors is an integer number (2702332).

Almost surely, 2^51936450 is an apocalyptic number.

51936450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51936450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64855968).

51936450 is an abundant number, since it is smaller than the sum of its proper divisors (77775486).

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

51936450 is a wasteful number, since it uses less digits than its factorization.

51936450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 51936450 is about 7206.6948041387. The cubic root of 51936450 is about 373.0990017210.

The spelling of 51936450 in words is "fifty-one million, nine hundred thirty-six thousand, four hundred fifty".