3525543720 has 48 divisors (see below), whose sum is σ = 11458018260. Its totient is φ = 940144896.

The previous prime is 3525543709. The next prime is 3525543751. The reversal of 3525543720 is 273455253.

3525543720 is a `hidden beast` number, since 3 + 52 + 554 + 37 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3071598084 + 453945636 = 55422^2 + 21306^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4896229 + ... + 4896948.

Almost surely, 2^3525543720 is an apocalyptic number.

3525543720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3525543720 is an abundant number, since it is smaller than the sum of its proper divisors (7932474540).

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

3525543720 is a wasteful number, since it uses less digits than its factorization.

3525543720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9793194 (or 9793187 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 36.

The square root of 3525543720 is about 59376.2892070564. The cubic root of 3525543720 is about 1521.9791451202.

Adding to 3525543720 its reverse (273455253), we get a palindrome (3798998973).

The spelling of 3525543720 in words is "three billion, five hundred twenty-five million, five hundred forty-three thousand, seven hundred twenty".