3505420523025 has 36 divisors (see below), whose sum is σ = 6279119343900. Its totient is φ = 1869402268800.

The previous prime is 3505420522897. The next prime is 3505420523039. The reversal of 3505420523025 is 5203250245053.

3505420523025 is a `hidden beast` number, since 35 + 0 + 542 + 0 + 52 + 30 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 351337536 + 3505069185489 = 18744^2 + 1872183^2 .

It is not a de Polignac number, because 3505420523025 - 2⁷ = 3505420522897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2092335 + ... + 3374715.

It is an arithmetic number, because the mean of its divisors is an integer number (174419981775).

Almost surely, 2^{3505420523025} is an apocalyptic number.

It is an amenable number.

3505420523025 is a deficient number, since it is larger than the sum of its proper divisors (2773698820875).

3505420523025 is a wasteful number, since it uses less digits than its factorization.

3505420523025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294546 (or 1294538 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 36.

Adding to 3505420523025 its reverse (5203250245053), we get a palindrome (8708670768078).

The spelling of 3505420523025 in words is "three trillion, five hundred five billion, four hundred twenty million, five hundred twenty-three thousand, twenty-five".