51357750 has 32 divisors (see below), whose sum is σ = 128190816. Its totient is φ = 13695200.

The previous prime is 51357743. The next prime is 51357751. The reversal of 51357750 is 5775315.

51357750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51357751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33489 + ... + 34988.

It is an arithmetic number, because the mean of its divisors is an integer number (4005963).

Almost surely, 2^51357750 is an apocalyptic number.

51357750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51357750 is an abundant number, since it is smaller than the sum of its proper divisors (76833066).

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

51357750 is a wasteful number, since it uses less digits than its factorization.

51357750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68497 (or 68487 counting only the distinct ones).

The product of its (nonzero) digits is 18375, while the sum is 33.

The square root of 51357750 is about 7166.4321667061. The cubic root of 51357750 is about 371.7080754022.

The spelling of 51357750 in words is "fifty-one million, three hundred fifty-seven thousand, seven hundred fifty".