5241761561 has 4 divisors (see below), whose sum is σ = 5242812624. Its totient is φ = 5240710500.

The previous prime is 5241761501. The next prime is 5241761593. The reversal of 5241761561 is 1651671425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5241761561 - 2¹⁴ = 5241745177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5241761501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518015 + ... + 528036.

It is an arithmetic number, because the mean of its divisors is an integer number (1310703156).

Almost surely, 2^5241761561 is an apocalyptic number.

It is an amenable number.

5241761561 is a deficient number, since it is larger than the sum of its proper divisors (1051063).

5241761561 is a wasteful number, since it uses less digits than its factorization.

5241761561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051062.

The product of its digits is 50400, while the sum is 38.

The square root of 5241761561 is about 72400.0107803859. The cubic root of 5241761561 is about 1737.1037343201.

The spelling of 5241761561 in words is "five billion, two hundred forty-one million, seven hundred sixty-one thousand, five hundred sixty-one".