2055217172 has 12 divisors (see below), whose sum is σ = 3599442336. Its totient is φ = 1026805080.

The previous prime is 2055217163. The next prime is 2055217181. The reversal of 2055217172 is 2717125502.

It is an interprime number because it is at equal distance from previous prime (2055217163) and next prime (2055217181).

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195104 + ... + 205367.

It is an arithmetic number, because the mean of its divisors is an integer number (299953528).

Almost surely, 2^2055217172 is an apocalyptic number.

It is an amenable number.

2055217172 is a deficient number, since it is larger than the sum of its proper divisors (1544225164).

2055217172 is a wasteful number, since it uses less digits than its factorization.

2055217172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401758 (or 401756 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 2055217172 is about 45334.5031074567. The cubic root of 2055217172 is about 1271.4108305134.

The spelling of 2055217172 in words is "two billion, fifty-five million, two hundred seventeen thousand, one hundred seventy-two".