5214152561 has 4 divisors (see below), whose sum is σ = 5312532852. Its totient is φ = 5115772272.

The previous prime is 5214152557. The next prime is 5214152621. The reversal of 5214152561 is 1652514125.

5214152561 = 6961² + 6962² + ... + 7066².

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 2962080625 + 2252071936 = 54425^2 + 47456^2 .

It is a cyclic number.

It is not a de Polignac number, because 5214152561 - 2² = 5214152557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5214152261) 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, 49190066 + ... + 49190171.

It is an arithmetic number, because the mean of its divisors is an integer number (1328133213).

Almost surely, 2^5214152561 is an apocalyptic number.

It is an amenable number.

5214152561 is a deficient number, since it is larger than the sum of its proper divisors (98380291).

5214152561 is an equidigital number, since it uses as much as digits as its factorization.

5214152561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98380290.

The product of its digits is 12000, while the sum is 32.

The square root of 5214152561 is about 72209.0891855035. The cubic root of 5214152561 is about 1734.0485179326.

Adding to 5214152561 its reverse (1652514125), we get a palindrome (6866666686).

The spelling of 5214152561 in words is "five billion, two hundred fourteen million, one hundred fifty-two thousand, five hundred sixty-one".