5142003521 has 2 divisors, whose sum is σ = 5142003522. Its totient is φ = 5142003520.

The previous prime is 5142003473. The next prime is 5142003523. The reversal of 5142003521 is 1253002415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3221811121 + 1920192400 = 56761^2 + 43820^2 .

It is a cyclic number.

It is not a de Polignac number, because 5142003521 - 2²² = 5137809217 is a prime.

Together with 5142003523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5142003523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2571001760 + 2571001761.

It is an arithmetic number, because the mean of its divisors is an integer number (2571001761).

Almost surely, 2^5142003521 is an apocalyptic number.

It is an amenable number.

5142003521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5142003521 is an equidigital number, since it uses as much as digits as its factorization.

5142003521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 5142003521 is about 71707.7647190316. The cubic root of 5142003521 is about 1726.0132417000.

Adding to 5142003521 its reverse (1253002415), we get a palindrome (6395005936).

The spelling of 5142003521 in words is "five billion, one hundred forty-two million, three thousand, five hundred twenty-one".