5575959657421 has 2 divisors, whose sum is σ = 5575959657422. Its totient is φ = 5575959657420.

The previous prime is 5575959657403. The next prime is 5575959657427. The reversal of 5575959657421 is 1247569595755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4707428854921 + 868530802500 = 2169661^2 + 931950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5575959657421 is a prime.

It is a super-2 number, since 2×5575959657421² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5575959657427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2787979828710 + 2787979828711.

It is an arithmetic number, because the mean of its divisors is an integer number (2787979828711).

Almost surely, 2^{5575959657421} is an apocalyptic number.

It is an amenable number.

5575959657421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5575959657421 is an equidigital number, since it uses as much as digits as its factorization.

5575959657421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 595350000, while the sum is 70.

The spelling of 5575959657421 in words is "five trillion, five hundred seventy-five billion, nine hundred fifty-nine million, six hundred fifty-seven thousand, four hundred twenty-one".