51953211 has 16 divisors (see below), whose sum is σ = 77483520. Its totient is φ = 34403400.

The previous prime is 51953203. The next prime is 51953221. The reversal of 51953211 is 11235915.

51953211 = 255² + 256² + ... + 556².

It is not a de Polignac number, because 51953211 - 2³ = 51953203 is a prime.

It is a super-2 number, since 2×51953211² = 5398272266421042, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51953221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2295 + ... + 10448.

It is an arithmetic number, because the mean of its divisors is an integer number (4842720).

Almost surely, 2^51953211 is an apocalyptic number.

51953211 is a deficient number, since it is larger than the sum of its proper divisors (25530309).

51953211 is a wasteful number, since it uses less digits than its factorization.

51953211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12903 (or 12897 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 51953211 is about 7207.8575873834. The cubic root of 51953211 is about 373.1391330724.

The spelling of 51953211 in words is "fifty-one million, nine hundred fifty-three thousand, two hundred eleven".