539625901 has 2 divisors, whose sum is σ = 539625902. Its totient is φ = 539625900.

The previous prime is 539625899. The next prime is 539625923. The reversal of 539625901 is 109526935.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312370276 + 227255625 = 17674^2 + 15075^2 .

It is a cyclic number.

It is not a de Polignac number, because 539625901 - 2¹ = 539625899 is a prime.

It is a super-2 number, since 2×539625901² = 582392226060123602, which contains 22 as substring.

Together with 539625899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539625991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269812950 + 269812951.

It is an arithmetic number, because the mean of its divisors is an integer number (269812951).

Almost surely, 2^539625901 is an apocalyptic number.

It is an amenable number.

539625901 is a deficient number, since it is larger than the sum of its proper divisors (1).

539625901 is an equidigital number, since it uses as much as digits as its factorization.

539625901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 539625901 is about 23229.8493537948. The cubic root of 539625901 is about 814.1371932189.

The spelling of 539625901 in words is "five hundred thirty-nine million, six hundred twenty-five thousand, nine hundred one".