402522061 has 2 divisors, whose sum is σ = 402522062. Its totient is φ = 402522060.

The previous prime is 402522047. The next prime is 402522077. The reversal of 402522061 is 160225204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272448036 + 130074025 = 16506^2 + 11405^2 .

It is a cyclic number.

It is not a de Polignac number, because 402522061 - 2⁹ = 402521549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402522031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201261030 + 201261031.

It is an arithmetic number, because the mean of its divisors is an integer number (201261031).

Almost surely, 2^402522061 is an apocalyptic number.

It is an amenable number.

402522061 is a deficient number, since it is larger than the sum of its proper divisors (1).

402522061 is an equidigital number, since it uses as much as digits as its factorization.

402522061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 402522061 is about 20062.9524497268. The cubic root of 402522061 is about 738.3516151422.

Adding to 402522061 its reverse (160225204), we get a palindrome (562747265).

The spelling of 402522061 in words is "four hundred two million, five hundred twenty-two thousand, sixty-one".