55121034 has 16 divisors (see below), whose sum is σ = 111888288. Its totient is φ = 18099312.

The previous prime is 55121029. The next prime is 55121051. The reversal of 55121034 is 43012155.

It is a self number, because there is not a number n which added to its sum of digits gives 55121034.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68157 + ... + 68960.

It is an arithmetic number, because the mean of its divisors is an integer number (6993018).

Almost surely, 2^55121034 is an apocalyptic number.

55121034 is an abundant number, since it is smaller than the sum of its proper divisors (56767254).

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

55121034 is a wasteful number, since it uses less digits than its factorization.

55121034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137189.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 55121034 is about 7424.3541133219. The cubic root of 55121034 is about 380.5740032410.

Adding to 55121034 its reverse (43012155), we get a palindrome (98133189).

The spelling of 55121034 in words is "fifty-five million, one hundred twenty-one thousand, thirty-four".