52630021653 has 16 divisors (see below), whose sum is σ = 79881140736. Its totient is φ = 30510157040.

The previous prime is 52630021649. The next prime is 52630021687. The reversal of 52630021653 is 35612003625.

It is not a de Polignac number, because 52630021653 - 2² = 52630021649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52630021643) 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 15 ways as a sum of consecutive naturals, for example, 34669875 + ... + 34671392.

It is an arithmetic number, because the mean of its divisors is an integer number (4992571296).

Almost surely, 2^52630021653 is an apocalyptic number.

It is an amenable number.

52630021653 is a deficient number, since it is larger than the sum of its proper divisors (27251119083).

52630021653 is a wasteful number, since it uses less digits than its factorization.

52630021653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69341304.

The product of its (nonzero) digits is 32400, while the sum is 33.

The spelling of 52630021653 in words is "fifty-two billion, six hundred thirty million, twenty-one thousand, six hundred fifty-three".