28201514501 has 2 divisors, whose sum is σ = 28201514502. Its totient is φ = 28201514500.

The previous prime is 28201514483. The next prime is 28201514533. The reversal of 28201514501 is 10541510282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27043473601 + 1158040900 = 164449^2 + 34030^2 .

It is a cyclic number.

It is not a de Polignac number, because 28201514501 - 2⁶ = 28201514437 is a prime.

It is a super-2 number, since 2×28201514501² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28201514581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14100757250 + 14100757251.

It is an arithmetic number, because the mean of its divisors is an integer number (14100757251).

Almost surely, 2^28201514501 is an apocalyptic number.

It is an amenable number.

28201514501 is a deficient number, since it is larger than the sum of its proper divisors (1).

28201514501 is an equidigital number, since it uses as much as digits as its factorization.

28201514501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 29.

The spelling of 28201514501 in words is "twenty-eight billion, two hundred one million, five hundred fourteen thousand, five hundred one".