15522061 has 2 divisors, whose sum is σ = 15522062. Its totient is φ = 15522060.

The previous prime is 15522049. The next prime is 15522109. The reversal of 15522061 is 16022551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15256836 + 265225 = 3906^2 + 515^2 .

It is a cyclic number.

It is not a de Polignac number, because 15522061 - 2¹¹ = 15520013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15522161) 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, 7761030 + 7761031.

It is an arithmetic number, because the mean of its divisors is an integer number (7761031).

Almost surely, 2^15522061 is an apocalyptic number.

It is an amenable number.

15522061 is a deficient number, since it is larger than the sum of its proper divisors (1).

15522061 is an equidigital number, since it uses as much as digits as its factorization.

15522061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 15522061 is about 3939.8046905906. The cubic root of 15522061 is about 249.4497819287.

The spelling of 15522061 in words is "fifteen million, five hundred twenty-two thousand, sixty-one".