51095739 has 8 divisors (see below), whose sum is σ = 69712192. Its totient is φ = 33271560.

The previous prime is 51095689. The next prime is 51095749. The reversal of 51095739 is 93759015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51095739 - 2⁹ = 51095227 is a prime.

It is a super-2 number, since 2×51095739² = 5221549087912242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51095697 and 51095706.

It is not an unprimeable number, because it can be changed into a prime (51095749) 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, 197917 + ... + 198174.

It is an arithmetic number, because the mean of its divisors is an integer number (8714024).

Almost surely, 2^51095739 is an apocalyptic number.

51095739 is a deficient number, since it is larger than the sum of its proper divisors (18616453).

51095739 is a wasteful number, since it uses less digits than its factorization.

51095739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396137.

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

The square root of 51095739 is about 7148.1283564301. The cubic root of 51095739 is about 371.0748850467.

The spelling of 51095739 in words is "fifty-one million, ninety-five thousand, seven hundred thirty-nine".