5126021 has 2 divisors, whose sum is σ = 5126022. Its totient is φ = 5126020.

The previous prime is 5126003. The next prime is 5126057. The reversal of 5126021 is 1206215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4202500 + 923521 = 2050^2 + 961^2 .

It is a cyclic number.

It is not a de Polignac number, because 5126021 - 2¹⁰ = 5124997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5126081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2563010 + 2563011.

It is an arithmetic number, because the mean of its divisors is an integer number (2563011).

Almost surely, 2^5126021 is an apocalyptic number.

It is an amenable number.

5126021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5126021 is an equidigital number, since it uses as much as digits as its factorization.

5126021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 5126021 is about 2264.0717744807. The cubic root of 5126021 is about 172.4223104615.

The spelling of 5126021 in words is "five million, one hundred twenty-six thousand, twenty-one".