51095380 has 48 divisors (see below), whose sum is σ = 123492096. Its totient is φ = 17395200.

The previous prime is 51095333. The next prime is 51095411. The reversal of 51095380 is 8359015.

51095380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51095380² = 5221475714688800, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 19932 + ... + 22348.

It is an arithmetic number, because the mean of its divisors is an integer number (2572752).

Almost surely, 2^51095380 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 51095380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61746048).

51095380 is an abundant number, since it is smaller than the sum of its proper divisors (72396716).

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

51095380 is a wasteful number, since it uses less digits than its factorization.

51095380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584 (or 2582 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 51095380 is about 7148.1032449175. The cubic root of 51095380 is about 371.0740159840.

The spelling of 51095380 in words is "fifty-one million, ninety-five thousand, three hundred eighty".