52245211772 has 48 divisors (see below), whose sum is σ = 106987776000. Its totient is φ = 22107142080.

The previous prime is 52245211771. The next prime is 52245211793. The reversal of 52245211772 is 27711254225.

It is a super-2 number, since 2×52245211772² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52245211771) 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, 822272 + ... + 883527.

It is an arithmetic number, because the mean of its divisors is an integer number (2228912000).

Almost surely, 2^52245211772 is an apocalyptic number.

52245211772 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52245211772 is an abundant number, since it is smaller than the sum of its proper divisors (54742564228).

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

52245211772 is a wasteful number, since it uses less digits than its factorization.

52245211772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705866 (or 1705864 counting only the distinct ones).

The product of its digits is 78400, while the sum is 38.

Adding to 52245211772 its reverse (27711254225), we get a palindrome (79956465997).

The spelling of 52245211772 in words is "fifty-two billion, two hundred forty-five million, two hundred eleven thousand, seven hundred seventy-two".