5202121537 has 2 divisors, whose sum is σ = 5202121538. Its totient is φ = 5202121536.

The previous prime is 5202121517. The next prime is 5202121571. The reversal of 5202121537 is 7351212025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3475220401 + 1726901136 = 58951^2 + 41556^2 .

It is a cyclic number.

It is not a de Polignac number, because 5202121537 - 2⁷ = 5202121409 is a prime.

It is not a weakly prime, because it can be changed into another prime (5202121517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2601060768 + 2601060769.

It is an arithmetic number, because the mean of its divisors is an integer number (2601060769).

Almost surely, 2^5202121537 is an apocalyptic number.

It is an amenable number.

5202121537 is a deficient number, since it is larger than the sum of its proper divisors (1).

5202121537 is an equidigital number, since it uses as much as digits as its factorization.

5202121537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 5202121537 is about 72125.7342215662. The cubic root of 5202121537 is about 1732.7137886872.

The spelling of 5202121537 in words is "five billion, two hundred two million, one hundred twenty-one thousand, five hundred thirty-seven".