52991002040 has 16 divisors (see below), whose sum is σ = 119229754680. Its totient is φ = 21196400800.

The previous prime is 52991002037. The next prime is 52991002067. The reversal of 52991002040 is 4020019925.

It is a junction number, because it is equal to n+sod(n) for n = 52991001988 and 52991002006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662387486 + ... + 662387565.

Almost surely, 2^52991002040 is an apocalyptic number.

It is an amenable number.

52991002040 is an abundant number, since it is smaller than the sum of its proper divisors (66238752640).

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

52991002040 is a wasteful number, since it uses less digits than its factorization.

52991002040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324775062 (or 1324775058 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 52991002040 in words is "fifty-two billion, nine hundred ninety-one million, two thousand, forty".