55011522 has 16 divisors (see below), whose sum is σ = 110700000. Its totient is φ = 18224352.

The previous prime is 55011499. The next prime is 55011527. The reversal of 55011522 is 22511055.

It is not an unprimeable number, because it can be changed into a prime (55011527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27147 + ... + 29102.

It is an arithmetic number, because the mean of its divisors is an integer number (6918750).

Almost surely, 2^55011522 is an apocalyptic number.

55011522 is an abundant number, since it is smaller than the sum of its proper divisors (55688478).

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

55011522 is a wasteful number, since it uses less digits than its factorization.

55011522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56417.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 55011522 is about 7416.9752594976. The cubic root of 55011522 is about 380.3218003542.

Adding to 55011522 its reverse (22511055), we get a palindrome (77522577).

The spelling of 55011522 in words is "fifty-five million, eleven thousand, five hundred twenty-two".