2155032324 has 48 divisors (see below), whose sum is σ = 5723403840. Its totient is φ = 700822080.

The previous prime is 2155032317. The next prime is 2155032359. The reversal of 2155032324 is 4232305512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 238914 + ... + 247769.

It is an arithmetic number, because the mean of its divisors is an integer number (119237580).

Almost surely, 2^2155032324 is an apocalyptic number.

It is an amenable number.

2155032324 is an abundant number, since it is smaller than the sum of its proper divisors (3568371516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2155032324 is a wasteful number, since it uses less digits than its factorization.

2155032324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486737 (or 486729 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2155032324 is about 46422.3257064960. The cubic root of 2155032324 is about 1291.6690780244.

Adding to 2155032324 its reverse (4232305512), we get a palindrome (6387337836).

The spelling of 2155032324 in words is "two billion, one hundred fifty-five million, thirty-two thousand, three hundred twenty-four".