51395608 has 64 divisors (see below), whose sum is σ = 112752000. Its totient is φ = 21715200.

The previous prime is 51395599. The next prime is 51395609. The reversal of 51395608 is 80659315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51395609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98388 + ... + 98908.

It is an arithmetic number, because the mean of its divisors is an integer number (1761750).

Almost surely, 2^51395608 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 51395608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56376000).

51395608 is an abundant number, since it is smaller than the sum of its proper divisors (61356392).

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

51395608 is a wasteful number, since it uses less digits than its factorization.

51395608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 51395608 is about 7169.0730223649. The cubic root of 51395608 is about 371.7993869570.

It can be divided in two parts, 51395 and 608, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 51395608 in words is "fifty-one million, three hundred ninety-five thousand, six hundred eight".