2554521505 has 16 divisors (see below), whose sum is σ = 3097083600. Its totient is φ = 2022565888.

The previous prime is 2554521503. The next prime is 2554521509. The reversal of 2554521505 is 5051254552.

It can be written as a sum of positive squares in 8 ways, for example, as 1173953169 + 1380568336 = 34263^2 + 37156^2 .

It is a cyclic number.

It is not a de Polignac number, because 2554521505 - 2¹ = 2554521503 is a prime.

It is a super-4 number, since 4×2554521505⁴ (a number of 39 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2554521503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433821 + ... + 439669.

It is an arithmetic number, because the mean of its divisors is an integer number (193567725).

Almost surely, 2^2554521505 is an apocalyptic number.

It is an amenable number.

2554521505 is a deficient number, since it is larger than the sum of its proper divisors (542562095).

2554521505 is a wasteful number, since it uses less digits than its factorization.

2554521505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740.

The product of its (nonzero) digits is 50000, while the sum is 34.

The square root of 2554521505 is about 50542.2744343782. The cubic root of 2554521505 is about 1367.0042172038.

The spelling of 2554521505 in words is "two billion, five hundred fifty-four million, five hundred twenty-one thousand, five hundred five".