53215047620 has 72 divisors (see below), whose sum is σ = 136838741760. Its totient is φ = 17284881600.

The previous prime is 53215047619. The next prime is 53215047643. The reversal of 53215047620 is 2674051235.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1410356 + ... + 1447595.

It is an arithmetic number, because the mean of its divisors is an integer number (1900538080).

Almost surely, 2^53215047620 is an apocalyptic number.

It is an amenable number.

53215047620 is an abundant number, since it is smaller than the sum of its proper divisors (83623694140).

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

53215047620 is a wasteful number, since it uses less digits than its factorization.

53215047620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857993 (or 2857984 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

Adding to 53215047620 its reverse (2674051235), we get a palindrome (55889098855).

The spelling of 53215047620 in words is "fifty-three billion, two hundred fifteen million, forty-seven thousand, six hundred twenty".