51958105 has 4 divisors (see below), whose sum is σ = 62349732. Its totient is φ = 41566480.

The previous prime is 51958099. The next prime is 51958121. The reversal of 51958105 is 50185915.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24364096 + 27594009 = 4936^2 + 5253^2 .

It is not a de Polignac number, because 51958105 - 2³ = 51958097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5195806 + ... + 5195815.

It is an arithmetic number, because the mean of its divisors is an integer number (15587433).

Almost surely, 2^51958105 is an apocalyptic number.

It is an amenable number.

51958105 is a deficient number, since it is larger than the sum of its proper divisors (10391627).

51958105 is a wasteful number, since it uses less digits than its factorization.

51958105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10391626.

The product of its (nonzero) digits is 9000, while the sum is 34.

The square root of 51958105 is about 7208.1970700030. The cubic root of 51958105 is about 373.1508492913.

The spelling of 51958105 in words is "fifty-one million, nine hundred fifty-eight thousand, one hundred five".