2528480655 has 96 divisors (see below), whose sum is σ = 4622417280. Its totient is φ = 1277337600.

The previous prime is 2528480641. The next prime is 2528480657. The reversal of 2528480655 is 5560848252.

It is a happy number.

It is a Cunningham number, because it is equal to 50284²-1.

It is not a de Polignac number, because 2528480655 - 2⁷ = 2528480527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2528480655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528480657) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16744830 + ... + 16744980.

It is an arithmetic number, because the mean of its divisors is an integer number (48150180).

Almost surely, 2^2528480655 is an apocalyptic number.

2528480655 is a deficient number, since it is larger than the sum of its proper divisors (2093936625).

2528480655 is a wasteful number, since it uses less digits than its factorization.

2528480655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 45.

The square root of 2528480655 is about 50283.9999900565. Note that the first 5 decimals coincide. The cubic root of 2528480655 is about 1362.3432525118.

The spelling of 2528480655 in words is "two billion, five hundred twenty-eight million, four hundred eighty thousand, six hundred fifty-five".