2105525430 has 48 divisors (see below), whose sum is σ = 5509271664. Its totient is φ = 557893440.

The previous prime is 2105525419. The next prime is 2105525431. The reversal of 2105525430 is 345255012.

It is a happy number.

2105525430 is a `hidden beast` number, since 2 + 105 + 525 + 4 + 30 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2105525394 and 2105525403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105525431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60376 + ... + 88635.

It is an arithmetic number, because the mean of its divisors is an integer number (114776493).

Almost surely, 2^2105525430 is an apocalyptic number.

2105525430 is an abundant number, since it is smaller than the sum of its proper divisors (3403746234).

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

2105525430 is a wasteful number, since it uses less digits than its factorization.

2105525430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149181 (or 149178 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2105525430 is about 45886.0047291110. The cubic root of 2105525430 is about 1281.7013163823.

The spelling of 2105525430 in words is "two billion, one hundred five million, five hundred twenty-five thousand, four hundred thirty".