10521152251 has 2 divisors, whose sum is σ = 10521152252. Its totient is φ = 10521152250.

The previous prime is 10521152249. The next prime is 10521152267. The reversal of 10521152251 is 15225112501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10521152251 - 2¹ = 10521152249 is a prime.

It is a super-2 number, since 2×10521152251² (a number of 21 digits) contains 22 as substring.

Together with 10521152249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10521152221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260576125 + 5260576126.

It is an arithmetic number, because the mean of its divisors is an integer number (5260576126).

Almost surely, 2^10521152251 is an apocalyptic number.

10521152251 is a deficient number, since it is larger than the sum of its proper divisors (1).

10521152251 is an equidigital number, since it uses as much as digits as its factorization.

10521152251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 10521152251 its reverse (15225112501), we get a palindrome (25746264752).

The spelling of 10521152251 in words is "ten billion, five hundred twenty-one million, one hundred fifty-two thousand, two hundred fifty-one".