51095849 has 4 divisors (see below), whose sum is σ = 58395264. Its totient is φ = 43796436.

The previous prime is 51095831. The next prime is 51095851. The reversal of 51095849 is 94859015.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51095849 - 2¹⁶ = 51030313 is a prime.

It is a super-2 number, since 2×51095849² = 5221571570061602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51095809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3649697 + ... + 3649710.

It is an arithmetic number, because the mean of its divisors is an integer number (14598816).

Almost surely, 2^51095849 is an apocalyptic number.

It is an amenable number.

51095849 is a deficient number, since it is larger than the sum of its proper divisors (7299415).

51095849 is an equidigital number, since it uses as much as digits as its factorization.

51095849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7299414.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 51095849 is about 7148.1360507478. The cubic root of 51095849 is about 371.0751513325.

The spelling of 51095849 in words is "fifty-one million, ninety-five thousand, eight hundred forty-nine".