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52138271 is a prime number
BaseRepresentation
bin1100011011100…
…1000100011111
310122002220021002
43012321010133
5101321411041
65101300515
71202111423
oct306710437
9118086232
1052138271
1127481289
121556473b
13aa56763
146cd2b83
15489d59b
hex31b911f

52138271 has 2 divisors, whose sum is σ = 52138272. Its totient is φ = 52138270.

The previous prime is 52138253. The next prime is 52138283. The reversal of 52138271 is 17283125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52138271 - 210 = 52137247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52138771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26069135 + 26069136.

It is an arithmetic number, because the mean of its divisors is an integer number (26069136).

Almost surely, 252138271 is an apocalyptic number.

52138271 is a deficient number, since it is larger than the sum of its proper divisors (1).

52138271 is an equidigital number, since it uses as much as digits as its factorization.

52138271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 52138271 is about 7220.6835548998. The cubic root of 52138271 is about 373.5816549637.

The spelling of 52138271 in words is "fifty-two million, one hundred thirty-eight thousand, two hundred seventy-one".