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51874957 is a prime number
BaseRepresentation
bin1100010111100…
…0110010001101
310121121112001201
43011320302031
5101234444312
65051505501
71166633641
oct305706215
9117545051
1051874957
1127311472
1215458291
13a993954
146c64c21
15484a557
hex3178c8d

51874957 has 2 divisors, whose sum is σ = 51874958. Its totient is φ = 51874956.

The previous prime is 51874937. The next prime is 51874967. The reversal of 51874957 is 75947815.

It is a happy number.

51874957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38118276 + 13756681 = 6174^2 + 3709^2 .

It is a cyclic number.

It is not a de Polignac number, because 51874957 - 27 = 51874829 is a prime.

It is a super-2 number, since 2×518749572 = 5382022327503698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51874937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25937478 + 25937479.

It is an arithmetic number, because the mean of its divisors is an integer number (25937479).

Almost surely, 251874957 is an apocalyptic number.

It is an amenable number.

51874957 is a deficient number, since it is larger than the sum of its proper divisors (1).

51874957 is an equidigital number, since it uses as much as digits as its factorization.

51874957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 46.

The square root of 51874957 is about 7202.4271603398. The cubic root of 51874957 is about 372.9516932460.

The spelling of 51874957 in words is "fifty-one million, eight hundred seventy-four thousand, nine hundred fifty-seven".