51972175 has 6 divisors (see below), whose sum is σ = 64445528. Its totient is φ = 41577720.

The previous prime is 51972149. The next prime is 51972191. The reversal of 51972175 is 57127915.

It is not a de Polignac number, because 51972175 - 2⁹ = 51971663 is a prime.

It is a super-2 number, since 2×51972175² = 5402213948461250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1039419 + ... + 1039468.

Almost surely, 2^51972175 is an apocalyptic number.

51972175 is a deficient number, since it is larger than the sum of its proper divisors (12473353).

51972175 is a wasteful number, since it uses less digits than its factorization.

51972175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078897 (or 2078892 counting only the distinct ones).

The product of its digits is 22050, while the sum is 37.

The square root of 51972175 is about 7209.1729761464. The cubic root of 51972175 is about 373.1845287247.

The spelling of 51972175 in words is "fifty-one million, nine hundred seventy-two thousand, one hundred seventy-five".