2505456428 has 12 divisors (see below), whose sum is σ = 4387372080. Its totient is φ = 1251921552.

The previous prime is 2505456427. The next prime is 2505456497. The reversal of 2505456428 is 8246545052.

2505456428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2505456427) 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, 194651 + ... + 207122.

It is an arithmetic number, because the mean of its divisors is an integer number (365614340).

Almost surely, 2^2505456428 is an apocalyptic number.

It is an amenable number.

2505456428 is a deficient number, since it is larger than the sum of its proper divisors (1881915652).

2505456428 is a wasteful number, since it uses less digits than its factorization.

2505456428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403336 (or 403334 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 41.

The square root of 2505456428 is about 50054.5345398396. The cubic root of 2505456428 is about 1358.1954924282.

The spelling of 2505456428 in words is "two billion, five hundred five million, four hundred fifty-six thousand, four hundred twenty-eight".