527952421 has 2 divisors, whose sum is σ = 527952422. Its totient is φ = 527952420.
The previous prime is 527952407. The next prime is 527952431. The reversal of 527952421 is 124259725.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 459244900 + 68707521 = 21430^2 + 8289^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-527952421 is a prime.
It is a super-2 number, since 2×5279524212 = 557467517679522482, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (527952431) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263976210 + 263976211.
It is an arithmetic number, because the mean of its divisors is an integer number (263976211).
Almost surely, 2527952421 is an apocalyptic number.
It is an amenable number.
527952421 is a deficient number, since it is larger than the sum of its proper divisors (1).
527952421 is an equidigital number, since it uses as much as digits as its factorization.
527952421 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 50400, while the sum is 37.
The square root of 527952421 is about 22977.2152577287. The cubic root of 527952421 is about 808.2237258499.
The spelling of 527952421 in words is "five hundred twenty-seven million, nine hundred fifty-two thousand, four hundred twenty-one".
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