52211772 has 36 divisors (see below), whose sum is σ = 138927880. Its totient is φ = 16487712.

The previous prime is 52211759. The next prime is 52211779. The reversal of 52211772 is 27711225.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52211779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37483 + ... + 38850.

Almost surely, 2^52211772 is an apocalyptic number.

It is an amenable number.

52211772 is an abundant number, since it is smaller than the sum of its proper divisors (86716108).

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

52211772 is a wasteful number, since it uses less digits than its factorization.

52211772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76362 (or 76357 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 52211772 is about 7225.7713775070. The cubic root of 52211772 is about 373.7571225661.

Adding to 52211772 its reverse (27711225), we get a palindrome (79922997).

The spelling of 52211772 in words is "fifty-two million, two hundred eleven thousand, seven hundred seventy-two".