14525210521 has 2 divisors, whose sum is σ = 14525210522. Its totient is φ = 14525210520.

The previous prime is 14525210489. The next prime is 14525210537. The reversal of 14525210521 is 12501252541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14401200025 + 124010496 = 120005^2 + 11136^2 .

It is a cyclic number.

It is not a de Polignac number, because 14525210521 - 2⁵ = 14525210489 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 14525210521.

It is not a weakly prime, because it can be changed into another prime (14525210561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7262605260 + 7262605261.

It is an arithmetic number, because the mean of its divisors is an integer number (7262605261).

Almost surely, 2^14525210521 is an apocalyptic number.

It is an amenable number.

14525210521 is a deficient number, since it is larger than the sum of its proper divisors (1).

14525210521 is an equidigital number, since it uses as much as digits as its factorization.

14525210521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 14525210521 in words is "fourteen billion, five hundred twenty-five million, two hundred ten thousand, five hundred twenty-one".