52211420440 has 64 divisors (see below), whose sum is σ = 120252132000. Its totient is φ = 20391340032.

The previous prime is 52211420431. The next prime is 52211420467. The reversal of 52211420440 is 4402411225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7820944 + ... + 7827616.

Almost surely, 2^52211420440 is an apocalyptic number.

It is an amenable number.

52211420440 is an abundant number, since it is smaller than the sum of its proper divisors (68040711560).

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

52211420440 is a wasteful number, since it uses less digits than its factorization.

52211420440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11276 (or 11272 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 52211420440 its reverse (4402411225), we get a palindrome (56613831665).

The spelling of 52211420440 in words is "fifty-two billion, two hundred eleven million, four hundred twenty thousand, four hundred forty".