51426005 has 8 divisors (see below), whose sum is σ = 62347992. Its totient is φ = 40716288.

The previous prime is 51425987. The next prime is 51426017. The reversal of 51426005 is 50062415.

It can be written as a sum of positive squares in 4 ways, for example, as 174724 + 51251281 = 418^2 + 7159^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51426005 - 2⁸ = 51425749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52532 + ... + 53501.

It is an arithmetic number, because the mean of its divisors is an integer number (7793499).

Almost surely, 2^51426005 is an apocalyptic number.

It is an amenable number.

51426005 is a deficient number, since it is larger than the sum of its proper divisors (10921987).

51426005 is a wasteful number, since it uses less digits than its factorization.

51426005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106135.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 51426005 is about 7171.1927180909. The cubic root of 51426005 is about 371.8726705124.

The spelling of 51426005 in words is "fifty-one million, four hundred twenty-six thousand, five".