3525400405 has 4 divisors (see below), whose sum is σ = 4230480492. Its totient is φ = 2820320320.

The previous prime is 3525400397. The next prime is 3525400453. The reversal of 3525400405 is 5040045253.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2544395364 + 981005041 = 50442^2 + 31321^2 .

It is not a de Polignac number, because 3525400405 - 2³ = 3525400397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352540036 + ... + 352540045.

It is an arithmetic number, because the mean of its divisors is an integer number (1057620123).

Almost surely, 2^3525400405 is an apocalyptic number.

It is an amenable number.

3525400405 is a deficient number, since it is larger than the sum of its proper divisors (705080087).

3525400405 is an equidigital number, since it uses as much as digits as its factorization.

3525400405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705080086.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 3525400405 is about 59375.0823578376. The cubic root of 3525400405 is about 1521.9585217863.

Adding to 3525400405 its reverse (5040045253), we get a palindrome (8565445658).

The spelling of 3525400405 in words is "three billion, five hundred twenty-five million, four hundred thousand, four hundred five".