2520535404 has 12 divisors (see below), whose sum is σ = 5881249304. Its totient is φ = 840178464.

The previous prime is 2520535403. The next prime is 2520535427. The reversal of 2520535404 is 4045350252.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2520535403) 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, 105022297 + ... + 105022320.

Almost surely, 2^2520535404 is an apocalyptic number.

It is an amenable number.

2520535404 is an abundant number, since it is smaller than the sum of its proper divisors (3360713900).

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

2520535404 is a wasteful number, since it uses less digits than its factorization.

2520535404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210044624 (or 210044622 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 2520535404 is about 50204.9340603093. The cubic root of 2520535404 is about 1360.9147903910.

Adding to 2520535404 its reverse (4045350252), we get a palindrome (6565885656).

The spelling of 2520535404 in words is "two billion, five hundred twenty million, five hundred thirty-five thousand, four hundred four".