2055212505 has 48 divisors (see below), whose sum is σ = 3626902656. Its totient is φ = 1076382720.

The previous prime is 2055212479. The next prime is 2055212507. The reversal of 2055212505 is 5052125502.

It is not a de Polignac number, because 2055212505 - 2⁹ = 2055211993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2055212507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 903049 + ... + 905321.

It is an arithmetic number, because the mean of its divisors is an integer number (75560472).

Almost surely, 2^2055212505 is an apocalyptic number.

It is an amenable number.

2055212505 is a deficient number, since it is larger than the sum of its proper divisors (1571690151).

2055212505 is a wasteful number, since it uses less digits than its factorization.

2055212505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638 (or 2635 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 2055212505 is about 45334.4516344910. The cubic root of 2055212505 is about 1271.4098681367.

The spelling of 2055212505 in words is "two billion, fifty-five million, two hundred twelve thousand, five hundred five".