2055563631 has 12 divisors (see below), whose sum is σ = 3239070120. Its totient is φ = 1245796080.

The previous prime is 2055563611. The next prime is 2055563633. The reversal of 2055563631 is 1363655502.

It is not a de Polignac number, because 2055563631 - 2⁹ = 2055563119 is a prime.

It is a super-2 number, since 2×2055563631² = 8450683682179808322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055563633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10381536 + ... + 10381733.

It is an arithmetic number, because the mean of its divisors is an integer number (269922510).

Almost surely, 2^2055563631 is an apocalyptic number.

2055563631 is a deficient number, since it is larger than the sum of its proper divisors (1183506489).

2055563631 is a wasteful number, since it uses less digits than its factorization.

2055563631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20763286 (or 20763283 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 2055563631 is about 45338.3240868032. The cubic root of 2055563631 is about 1271.4822693506.

The spelling of 2055563631 in words is "two billion, fifty-five million, five hundred sixty-three thousand, six hundred thirty-one".