2554521545 has 4 divisors (see below), whose sum is σ = 3065425860. Its totient is φ = 2043617232.

The previous prime is 2554521509. The next prime is 2554521569. The reversal of 2554521545 is 5451254552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 355661881 + 2198859664 = 18859^2 + 46892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2554521545 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2554521499 and 2554521508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255452150 + ... + 255452159.

It is an arithmetic number, because the mean of its divisors is an integer number (766356465).

Almost surely, 2^2554521545 is an apocalyptic number.

It is an amenable number.

2554521545 is a deficient number, since it is larger than the sum of its proper divisors (510904315).

2554521545 is an equidigital number, since it uses as much as digits as its factorization.

2554521545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510904314.

The product of its digits is 200000, while the sum is 38.

The square root of 2554521545 is about 50542.2748300865. The cubic root of 2554521545 is about 1367.0042243389.

The spelling of 2554521545 in words is "two billion, five hundred fifty-four million, five hundred twenty-one thousand, five hundred forty-five".