5241210661 has 4 divisors (see below), whose sum is σ = 5330044800. Its totient is φ = 5152376524.

The previous prime is 5241210659. The next prime is 5241210679. The reversal of 5241210661 is 1660121425.

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 5241210661 - 2¹ = 5241210659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5241210631) 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, 44416981 + ... + 44417098.

It is an arithmetic number, because the mean of its divisors is an integer number (1332511200).

Almost surely, 2^5241210661 is an apocalyptic number.

It is an amenable number.

5241210661 is a deficient number, since it is larger than the sum of its proper divisors (88834139).

5241210661 is an equidigital number, since it uses as much as digits as its factorization.

5241210661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88834138.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 5241210661 is about 72396.2061229730. The cubic root of 5241210661 is about 1737.0428766635.

The spelling of 5241210661 in words is "five billion, two hundred forty-one million, two hundred ten thousand, six hundred sixty-one".