2528865553 has 8 divisors (see below), whose sum is σ = 2664299520. Its totient is φ = 2393665200.

The previous prime is 2528865541. The next prime is 2528865587. The reversal of 2528865553 is 3555688252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2528865553 - 2¹³ = 2528857361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2528865497 and 2528865506.

It is not an unprimeable number, because it can be changed into a prime (2528865523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35950 + ... + 79687.

It is an arithmetic number, because the mean of its divisors is an integer number (333037440).

Almost surely, 2^2528865553 is an apocalyptic number.

It is an amenable number.

2528865553 is a deficient number, since it is larger than the sum of its proper divisors (135433967).

2528865553 is a wasteful number, since it uses less digits than its factorization.

2528865553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116807.

The product of its digits is 2880000, while the sum is 49.

The square root of 2528865553 is about 50287.8270856874. The cubic root of 2528865553 is about 1362.4123765775.

The spelling of 2528865553 in words is "two billion, five hundred twenty-eight million, eight hundred sixty-five thousand, five hundred fifty-three".