2155445524 has 12 divisors (see below), whose sum is σ = 3801731584. Its totient is φ = 1069236504.

The previous prime is 2155445497. The next prime is 2155445533. The reversal of 2155445524 is 4255445512.

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, 2120994 + ... + 2122009.

Almost surely, 2^2155445524 is an apocalyptic number.

It is an amenable number.

2155445524 is a deficient number, since it is larger than the sum of its proper divisors (1646286060).

2155445524 is a wasteful number, since it uses less digits than its factorization.

2155445524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243134 (or 4243132 counting only the distinct ones).

The product of its digits is 160000, while the sum is 37.

The square root of 2155445524 is about 46426.7759380296. The cubic root of 2155445524 is about 1291.7516264468.

The spelling of 2155445524 in words is "two billion, one hundred fifty-five million, four hundred forty-five thousand, five hundred twenty-four".