5537503121 has 2 divisors, whose sum is σ = 5537503122. Its totient is φ = 5537503120.

The previous prime is 5537503099. The next prime is 5537503157. The reversal of 5537503121 is 1213057355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5525840896 + 11662225 = 74336^2 + 3415^2 .

It is a cyclic number.

It is not a de Polignac number, because 5537503121 - 2²⁶ = 5470394257 is a prime.

It is not a weakly prime, because it can be changed into another prime (5537500121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2768751560 + 2768751561.

It is an arithmetic number, because the mean of its divisors is an integer number (2768751561).

Almost surely, 2^5537503121 is an apocalyptic number.

It is an amenable number.

5537503121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5537503121 is an equidigital number, since it uses as much as digits as its factorization.

5537503121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 5537503121 is about 74414.4013010923. The cubic root of 5537503121 is about 1769.1771762563.

The spelling of 5537503121 in words is "five billion, five hundred thirty-seven million, five hundred three thousand, one hundred twenty-one".