2528055005549 has 4 divisors (see below), whose sum is σ = 2528164843740. Its totient is φ = 2527945167360.

The previous prime is 2528055005519. The next prime is 2528055005563. The reversal of 2528055005549 is 9455005508252.

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 1456322795524 + 1071732210025 = 1206782^2 + 1035245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2528055005549 is a prime.

It is a super-2 number, since 2×2528055005549² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2528055005497 and 2528055005506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528055005519) 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, 54884564 + ... + 54930605.

It is an arithmetic number, because the mean of its divisors is an integer number (632041210935).

Almost surely, 2^{2528055005549} is an apocalyptic number.

It is an amenable number.

2528055005549 is a deficient number, since it is larger than the sum of its proper divisors (109838191).

2528055005549 is a wasteful number, since it uses less digits than its factorization.

2528055005549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109838190.

The product of its (nonzero) digits is 3600000, while the sum is 50.

The spelling of 2528055005549 in words is "two trillion, five hundred twenty-eight billion, fifty-five million, five thousand, five hundred forty-nine".