2155543410 has 32 divisors (see below), whose sum is σ = 5313125952. Its totient is φ = 559275840.

The previous prime is 2155543399. The next prime is 2155543427. The reversal of 2155543410 is 143455512.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 969856 + ... + 972075.

It is an arithmetic number, because the mean of its divisors is an integer number (166035186).

Almost surely, 2^2155543410 is an apocalyptic number.

2155543410 is an abundant number, since it is smaller than the sum of its proper divisors (3157582542).

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

2155543410 is a wasteful number, since it uses less digits than its factorization.

2155543410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941978.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 2155543410 is about 46427.8301237523. The cubic root of 2155543410 is about 1291.7711804066.

Adding to 2155543410 its reverse (143455512), we get a palindrome (2298998922).

The spelling of 2155543410 in words is "two billion, one hundred fifty-five million, five hundred forty-three thousand, four hundred ten".