2154224505 has 32 divisors (see below), whose sum is σ = 3615365376. Its totient is φ = 1093238784.

The previous prime is 2154224491. The next prime is 2154224509. The reversal of 2154224505 is 5054224512.

2154224505 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 2154224505 - 2⁴ = 2154224489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2154224509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50409 + ... + 82761.

It is an arithmetic number, because the mean of its divisors is an integer number (112980168).

Almost surely, 2^2154224505 is an apocalyptic number.

It is an amenable number.

2154224505 is a deficient number, since it is larger than the sum of its proper divisors (1461140871).

2154224505 is a wasteful number, since it uses less digits than its factorization.

2154224505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32577.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2154224505 is about 46413.6241312828. The cubic root of 2154224505 is about 1291.5076627769.

The spelling of 2154224505 in words is "two billion, one hundred fifty-four million, two hundred twenty-four thousand, five hundred five".