28002530253 has 16 divisors (see below), whose sum is σ = 37962302400. Its totient is φ = 18355774080.

The previous prime is 28002530233. The next prime is 28002530267. The reversal of 28002530253 is 35203520082.

It is not a de Polignac number, because 28002530253 - 2⁵ = 28002530221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28002530253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28002530233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517558 + ... + 569096.

It is an arithmetic number, because the mean of its divisors is an integer number (2372643900).

Almost surely, 2^28002530253 is an apocalyptic number.

It is an amenable number.

28002530253 is a deficient number, since it is larger than the sum of its proper divisors (9959772147).

28002530253 is a wasteful number, since it uses less digits than its factorization.

28002530253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54572.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 28002530253 in words is "twenty-eight billion, two million, five hundred thirty thousand, two hundred fifty-three".