51911610 has 64 divisors (see below), whose sum is σ = 133384320. Its totient is φ = 12890880.

The previous prime is 51911599. The next prime is 51911623. The reversal of 51911610 is 1611915.

51911610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 34024 + ... + 35516.

It is an arithmetic number, because the mean of its divisors is an integer number (2084130).

Almost surely, 2^51911610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51911610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66692160).

51911610 is an abundant number, since it is smaller than the sum of its proper divisors (81472710).

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

51911610 is a wasteful number, since it uses less digits than its factorization.

51911610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583.

The product of its (nonzero) digits is 270, while the sum is 24.

The square root of 51911610 is about 7204.9712004976. The cubic root of 51911610 is about 373.0395107013.

The spelling of 51911610 in words is "fifty-one million, nine hundred eleven thousand, six hundred ten".