2104855531 has 2 divisors, whose sum is σ = 2104855532. Its totient is φ = 2104855530.

The previous prime is 2104855507. The next prime is 2104855541. The reversal of 2104855531 is 1355584012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2104855531 - 2¹⁵ = 2104822763 is a prime.

It is a super-2 number, since 2×2104855531² = 8860833612762583922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2104855541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052427765 + 1052427766.

It is an arithmetic number, because the mean of its divisors is an integer number (1052427766).

Almost surely, 2^2104855531 is an apocalyptic number.

2104855531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104855531 is an equidigital number, since it uses as much as digits as its factorization.

2104855531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 2104855531 is about 45878.7045479708. The cubic root of 2104855531 is about 1281.5653722464.

The spelling of 2104855531 in words is "two billion, one hundred four million, eight hundred fifty-five thousand, five hundred thirty-one".