2106553420 has 12 divisors (see below), whose sum is σ = 4423762224. Its totient is φ = 842621360.

The previous prime is 2106553411. The next prime is 2106553429. The reversal of 2106553420 is 243556012.

It is an interprime number because it is at equal distance from previous prime (2106553411) and next prime (2106553429).

It is a super-2 number, since 2×2106553420² = 8875134622627392800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2106553429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52663816 + ... + 52663855.

It is an arithmetic number, because the mean of its divisors is an integer number (368646852).

Almost surely, 2^2106553420 is an apocalyptic number.

2106553420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2106553420 is an abundant number, since it is smaller than the sum of its proper divisors (2317208804).

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

2106553420 is a wasteful number, since it uses less digits than its factorization.

2106553420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105327680 (or 105327678 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2106553420 is about 45897.2049257904. The cubic root of 2106553420 is about 1281.9098726801.

The spelling of 2106553420 in words is "two billion, one hundred six million, five hundred fifty-three thousand, four hundred twenty".