6211560401 has 2 divisors, whose sum is σ = 6211560402. Its totient is φ = 6211560400.

The previous prime is 6211560361. The next prime is 6211560449. The reversal of 6211560401 is 1040651126.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5514547600 + 697012801 = 74260^2 + 26401^2 .

It is a cyclic number.

It is not a de Polignac number, because 6211560401 - 2⁶ = 6211560337 is a prime.

It is not a weakly prime, because it can be changed into another prime (6211560451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3105780200 + 3105780201.

It is an arithmetic number, because the mean of its divisors is an integer number (3105780201).

Almost surely, 2^6211560401 is an apocalyptic number.

It is an amenable number.

6211560401 is a deficient number, since it is larger than the sum of its proper divisors (1).

6211560401 is an equidigital number, since it uses as much as digits as its factorization.

6211560401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 6211560401 is about 78813.4531726659. The cubic root of 6211560401 is about 1838.2316423480.

The spelling of 6211560401 in words is "six billion, two hundred eleven million, five hundred sixty thousand, four hundred one".