5145530562261 has 24 divisors (see below), whose sum is σ = 7645304186520. Its totient is φ = 3332799820800.

The previous prime is 5145530562223. The next prime is 5145530562269. The reversal of 5145530562261 is 1622650355415.

5145530562261 is a `hidden beast` number, since 5 + 1 + 4 + 5 + 530 + 56 + 2 + 2 + 61 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1495019744100 + 3650510818161 = 1222710^2 + 1910631^2 .

It is not a de Polignac number, because 5145530562261 - 2¹¹ = 5145530560213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145530562269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28841626 + ... + 29019483.

It is an arithmetic number, because the mean of its divisors is an integer number (318554341105).

Almost surely, 2^{5145530562261} is an apocalyptic number.

It is an amenable number.

5145530562261 is a deficient number, since it is larger than the sum of its proper divisors (2499773624259).

5145530562261 is a wasteful number, since it uses less digits than its factorization.

5145530562261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57861397 (or 57861394 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 5145530562261 in words is "five trillion, one hundred forty-five billion, five hundred thirty million, five hundred sixty-two thousand, two hundred sixty-one".