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52120297 is a prime number
BaseRepresentation
bin1100011011010…
…0101011101001
310122001222121101
43012310223221
5101320322142
65101041401
71202005135
oct306645351
9118058541
1052120297
1127469829
1215556261
13aa4b518
146cca3c5
1548980b7
hex31b4ae9

52120297 has 2 divisors, whose sum is σ = 52120298. Its totient is φ = 52120296.

The previous prime is 52120273. The next prime is 52120301. The reversal of 52120297 is 79202125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51566761 + 553536 = 7181^2 + 744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52120297 is a prime.

It is not a weakly prime, because it can be changed into another prime (52120247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26060148 + 26060149.

It is an arithmetic number, because the mean of its divisors is an integer number (26060149).

Almost surely, 252120297 is an apocalyptic number.

It is an amenable number.

52120297 is a deficient number, since it is larger than the sum of its proper divisors (1).

52120297 is an equidigital number, since it uses as much as digits as its factorization.

52120297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 52120297 is about 7219.4388286071. The cubic root of 52120297 is about 373.5387208688.

The spelling of 52120297 in words is "fifty-two million, one hundred twenty thousand, two hundred ninety-seven".