53215025053646 has 4 divisors (see below), whose sum is σ = 79822537580472. Its totient is φ = 26607512526822.

The previous prime is 53215025053633. The next prime is 53215025053753. The reversal of 53215025053646 is 64635052051235.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 53215025053646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13303756263410 + ... + 13303756263413.

It is an arithmetic number, because the mean of its divisors is an integer number (19955634395118).

Almost surely, 2^{53215025053646} is an apocalyptic number.

53215025053646 is a deficient number, since it is larger than the sum of its proper divisors (26607512526826).

53215025053646 is a wasteful number, since it uses less digits than its factorization.

53215025053646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26607512526825.

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 53215025053646 in words is "fifty-three trillion, two hundred fifteen billion, twenty-five million, fifty-three thousand, six hundred forty-six".