51450336 has 192 divisors, whose sum is σ = 176117760. Its totient is φ = 14307840.

The previous prime is 51450323. The next prime is 51450341. The reversal of 51450336 is 63305415.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284166 + ... + 284346.

It is an arithmetic number, because the mean of its divisors is an integer number (917280).

Almost surely, 2^51450336 is an apocalyptic number.

51450336 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51450336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88058880).

51450336 is an abundant number, since it is smaller than the sum of its proper divisors (124667424).

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

51450336 is a wasteful number, since it uses less digits than its factorization.

51450336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 51450336 is about 7172.8889577352. Note that the first 3 decimals coincide. The cubic root of 51450336 is about 371.9313088568.

The spelling of 51450336 in words is "fifty-one million, four hundred fifty thousand, three hundred thirty-six".