21048126253 has 48 divisors (see below), whose sum is σ = 28306272960. Its totient is φ = 15448876800.

The previous prime is 21048126247. The next prime is 21048126259. The reversal of 21048126253 is 35262184012.

It is an interprime number because it is at equal distance from previous prime (21048126247) and next prime (21048126259).

It is not a de Polignac number, because 21048126253 - 2²⁵ = 21014571821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21048126259) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 624450 + ... + 657292.

It is an arithmetic number, because the mean of its divisors is an integer number (589714020).

Almost surely, 2^21048126253 is an apocalyptic number.

It is an amenable number.

21048126253 is a deficient number, since it is larger than the sum of its proper divisors (7258146707).

21048126253 is a wasteful number, since it uses less digits than its factorization.

21048126253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32938 (or 32931 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 21048126253 in words is "twenty-one billion, forty-eight million, one hundred twenty-six thousand, two hundred fifty-three".