52490691330 has 128 divisors (see below), whose sum is σ = 157345929216. Its totient is φ = 10887513600.

The previous prime is 52490691329. The next prime is 52490691343. The reversal of 52490691330 is 3319609425.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1280350 + ... + 1320710.

It is an arithmetic number, because the mean of its divisors is an integer number (1229265072).

Almost surely, 2^52490691330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52490691330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78672964608).

52490691330 is an abundant number, since it is smaller than the sum of its proper divisors (104855237886).

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

52490691330 is a wasteful number, since it uses less digits than its factorization.

52490691330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40952.

The product of its (nonzero) digits is 174960, while the sum is 42.

The spelling of 52490691330 in words is "fifty-two billion, four hundred ninety million, six hundred ninety-one thousand, three hundred thirty".