11252545021 has 8 divisors (see below), whose sum is σ = 11925222840. Its totient is φ = 10581063168.

The previous prime is 11252544991. The next prime is 11252545027. The reversal of 11252545021 is 12054525211.

It can be written as a sum of positive squares in 4 ways, for example, as 14212900 + 11238332121 = 3770^2 + 106011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11252545021 - 2⁹ = 11252544509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11252545027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279576 + ... + 317281.

It is an arithmetic number, because the mean of its divisors is an integer number (1490652855).

Almost surely, 2^11252545021 is an apocalyptic number.

It is an amenable number.

11252545021 is a deficient number, since it is larger than the sum of its proper divisors (672677819).

11252545021 is a wasteful number, since it uses less digits than its factorization.

11252545021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597983.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 11252545021 in words is "eleven billion, two hundred fifty-two million, five hundred forty-five thousand, twenty-one".