52421012545 has 32 divisors (see below), whose sum is σ = 70277796864. Its totient is φ = 37206993600.

The previous prime is 52421012537. The next prime is 52421012561. The reversal of 52421012545 is 54521012425.

It is not a de Polignac number, because 52421012545 - 2³ = 52421012537 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3073090 + ... + 3090100.

It is an arithmetic number, because the mean of its divisors is an integer number (2196181152).

Almost surely, 2^52421012545 is an apocalyptic number.

52421012545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52421012545 is a deficient number, since it is larger than the sum of its proper divisors (17856784319).

52421012545 is a wasteful number, since it uses less digits than its factorization.

52421012545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18373.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 52421012545 in words is "fifty-two billion, four hundred twenty-one million, twelve thousand, five hundred forty-five".