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51996349 is a prime number
BaseRepresentation
bin1100011001011…
…0011010111101
310121211200120201
43012112122331
5101302340344
65054243501
71200650566
oct306263275
9117750521
1051996349
1127394699
12154b6591
13aa06c92
146c9716d
1548714d4
hex31966bd

51996349 has 2 divisors, whose sum is σ = 51996350. Its totient is φ = 51996348.

The previous prime is 51996337. The next prime is 51996383. The reversal of 51996349 is 94369915.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28783225 + 23213124 = 5365^2 + 4818^2 .

It is a cyclic number.

It is not a de Polignac number, because 51996349 - 211 = 51994301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51996299 and 51996308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51996649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25998174 + 25998175.

It is an arithmetic number, because the mean of its divisors is an integer number (25998175).

Almost surely, 251996349 is an apocalyptic number.

It is an amenable number.

51996349 is a deficient number, since it is larger than the sum of its proper divisors (1).

51996349 is an equidigital number, since it uses as much as digits as its factorization.

51996349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 46.

The square root of 51996349 is about 7210.8493951822. The cubic root of 51996349 is about 373.2423799656.

The spelling of 51996349 in words is "fifty-one million, nine hundred ninety-six thousand, three hundred forty-nine".