52162521990 has 16 divisors (see below), whose sum is σ = 125190052848. Its totient is φ = 13910005856.

The previous prime is 52162521959. The next prime is 52162522003. The reversal of 52162521990 is 9912526125.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869375337 + ... + 869375396.

It is an arithmetic number, because the mean of its divisors is an integer number (7824378303).

Almost surely, 2^52162521990 is an apocalyptic number.

52162521990 is an abundant number, since it is smaller than the sum of its proper divisors (73027530858).

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

52162521990 is a wasteful number, since it uses less digits than its factorization.

52162521990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738750743.

The product of its (nonzero) digits is 97200, while the sum is 42.

The spelling of 52162521990 in words is "fifty-two billion, one hundred sixty-two million, five hundred twenty-one thousand, nine hundred ninety".