2155483700 has 18 divisors (see below), whose sum is σ = 4677399846. Its totient is φ = 862193440.

The previous prime is 2155483697. The next prime is 2155483711. The reversal of 2155483700 is 73845512.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 110224 + 2155373476 = 332^2 + 46426^2 .

It is a super-2 number, since 2×2155483700² = 9292219961931380000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10777319 + ... + 10777518.

It is an arithmetic number, because the mean of its divisors is an integer number (259855547).

Almost surely, 2^2155483700 is an apocalyptic number.

2155483700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2155483700 is an abundant number, since it is smaller than the sum of its proper divisors (2521916146).

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

2155483700 is a wasteful number, since it uses less digits than its factorization.

2155483700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21554851 (or 21554844 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 2155483700 is about 46427.1870782627. The cubic root of 2155483700 is about 1291.7592526534.

The spelling of 2155483700 in words is "two billion, one hundred fifty-five million, four hundred eighty-three thousand, seven hundred".