51950169 has 12 divisors (see below), whose sum is σ = 78302016. Its totient is φ = 33127512.

The previous prime is 51950159. The next prime is 51950177. The reversal of 51950169 is 96105915.

It is not a de Polignac number, because 51950169 - 2¹¹ = 51948121 is a prime.

It is a super-2 number, since 2×51950169² = 5397640118257122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51950159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125277 + ... + 125690.

It is an arithmetic number, because the mean of its divisors is an integer number (6525168).

Almost surely, 2^51950169 is an apocalyptic number.

It is an amenable number.

51950169 is a deficient number, since it is larger than the sum of its proper divisors (26351847).

51950169 is a wasteful number, since it uses less digits than its factorization.

51950169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250996 (or 250993 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 51950169 is about 7207.6465645868. The cubic root of 51950169 is about 373.1318501642.

The spelling of 51950169 in words is "fifty-one million, nine hundred fifty thousand, one hundred sixty-nine".