52621013563420 has 48 divisors (see below), whose sum is σ = 111092138565408. Its totient is φ = 20936607344640.

The previous prime is 52621013563411. The next prime is 52621013563427. The reversal of 52621013563420 is 2436531012625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52621013563427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2238702 + ... + 10500181.

It is an arithmetic number, because the mean of its divisors is an integer number (2314419553446).

Almost surely, 2^{52621013563420} is an apocalyptic number.

It is an amenable number.

52621013563420 is an abundant number, since it is smaller than the sum of its proper divisors (58471125001988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52621013563420 is a wasteful number, since it uses less digits than its factorization.

52621013563420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12739990 (or 12739988 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 52621013563420 in words is "fifty-two trillion, six hundred twenty-one billion, thirteen million, five hundred sixty-three thousand, four hundred twenty".