51795390 has 16 divisors (see below), whose sum is σ = 124309008. Its totient is φ = 13812096.

The previous prime is 51795377. The next prime is 51795391. The reversal of 51795390 is 9359715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51795391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863227 + ... + 863286.

It is an arithmetic number, because the mean of its divisors is an integer number (7769313).

Almost surely, 2^51795390 is an apocalyptic number.

51795390 is an abundant number, since it is smaller than the sum of its proper divisors (72513618).

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

51795390 is a wasteful number, since it uses less digits than its factorization.

51795390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726523.

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 51795390 is about 7196.9014165820. The cubic root of 51795390 is about 372.7609150496.

The spelling of 51795390 in words is "fifty-one million, seven hundred ninety-five thousand, three hundred ninety".