653965072550 has 12 divisors (see below), whose sum is σ = 1216375035036. Its totient is φ = 261586029000.

The previous prime is 653965072487. The next prime is 653965072559. The reversal of 653965072550 is 55270569356.

It is a super-2 number, since 2×653965072550² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 653965072492 and 653965072501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653965072559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6539650676 + ... + 6539650775.

It is an arithmetic number, because the mean of its divisors is an integer number (101364586253).

Almost surely, 2^653965072550 is an apocalyptic number.

653965072550 is a deficient number, since it is larger than the sum of its proper divisors (562409962486).

653965072550 is a wasteful number, since it uses less digits than its factorization.

653965072550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13079301463 (or 13079301458 counting only the distinct ones).

The product of its (nonzero) digits is 8505000, while the sum is 53.

The spelling of 653965072550 in words is "six hundred fifty-three billion, nine hundred sixty-five million, seventy-two thousand, five hundred fifty".