51671506 has 8 divisors (see below), whose sum is σ = 77551740. Its totient is φ = 25820928.

The previous prime is 51671491. The next prime is 51671549. The reversal of 51671506 is 60517615.

It can be written as a sum of positive squares in 2 ways, for example, as 51194025 + 477481 = 7155^2 + 691^2 .

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

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, 2371 + ... + 10438.

Almost surely, 2^51671506 is an apocalyptic number.

51671506 is a deficient number, since it is larger than the sum of its proper divisors (25880234).

51671506 is a wasteful number, since it uses less digits than its factorization.

51671506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14828.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 51671506 is about 7188.2895044649. The cubic root of 51671506 is about 372.4634884562.

The spelling of 51671506 in words is "fifty-one million, six hundred seventy-one thousand, five hundred six".