2172424655 has 16 divisors (see below), whose sum is σ = 2723522400. Its totient is φ = 1661385600.

The previous prime is 2172424637. The next prime is 2172424703. The reversal of 2172424655 is 5564242712.

2172424655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2172424655 - 2¹² = 2172420559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59525 + ... + 88814.

It is an arithmetic number, because the mean of its divisors is an integer number (170220150).

Almost surely, 2^2172424655 is an apocalyptic number.

2172424655 is a deficient number, since it is larger than the sum of its proper divisors (551097745).

2172424655 is a wasteful number, since it uses less digits than its factorization.

2172424655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148474.

The product of its digits is 134400, while the sum is 38.

The square root of 2172424655 is about 46609.2764908446. The cubic root of 2172424655 is about 1295.1346053491.

The spelling of 2172424655 in words is "two billion, one hundred seventy-two million, four hundred twenty-four thousand, six hundred fifty-five".