52687640654 has 16 divisors (see below), whose sum is σ = 87629520816. Its totient is φ = 23556321600.

The previous prime is 52687640651. The next prime is 52687640659. The reversal of 52687640654 is 45604678625.

It is a junction number, because it is equal to n+sod(n) for n = 52687640596 and 52687640605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52687640651) 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, 19628927 + ... + 19631610.

It is an arithmetic number, because the mean of its divisors is an integer number (5476845051).

Almost surely, 2^52687640654 is an apocalyptic number.

52687640654 is a deficient number, since it is larger than the sum of its proper divisors (34941880162).

52687640654 is a wasteful number, since it uses less digits than its factorization.

52687640654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39260611.

The product of its (nonzero) digits is 9676800, while the sum is 53.

The spelling of 52687640654 in words is "fifty-two billion, six hundred eighty-seven million, six hundred forty thousand, six hundred fifty-four".