10051245521 has 2 divisors, whose sum is σ = 10051245522. Its totient is φ = 10051245520.

The previous prime is 10051245511. The next prime is 10051245539. The reversal of 10051245521 is 12554215001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7152930625 + 2898314896 = 84575^2 + 53836^2 .

It is an emirp because it is prime and its reverse (12554215001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10051245521 - 2¹⁸ = 10050983377 is a prime.

It is a super-2 number, since 2×10051245521² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10051245511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025622760 + 5025622761.

It is an arithmetic number, because the mean of its divisors is an integer number (5025622761).

Almost surely, 2^10051245521 is an apocalyptic number.

It is an amenable number.

10051245521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10051245521 is an equidigital number, since it uses as much as digits as its factorization.

10051245521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 10051245521 in words is "ten billion, fifty-one million, two hundred forty-five thousand, five hundred twenty-one".