55122534 has 72 divisors (see below), whose sum is σ = 133731000. Its totient is φ = 16350336.

The previous prime is 55122527. The next prime is 55122581. The reversal of 55122534 is 43522155.

It is a happy number.

55122534 is a `hidden beast` number, since 5 + 5 + 122 + 534 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 55122498 and 55122507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 110217 + ... + 110715.

It is an arithmetic number, because the mean of its divisors is an integer number (1857375).

Almost surely, 2^55122534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55122534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66865500).

55122534 is an abundant number, since it is smaller than the sum of its proper divisors (78608466).

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

55122534 is a wasteful number, since it uses less digits than its factorization.

55122534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 540 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 55122534 is about 7424.4551315231. The cubic root of 55122534 is about 380.5774553764.

Adding to 55122534 its reverse (43522155), we get a palindrome (98644689).

The spelling of 55122534 in words is "fifty-five million, one hundred twenty-two thousand, five hundred thirty-four".