52121055 has 24 divisors (see below), whose sum is σ = 97010352. Its totient is φ = 23826432.

The previous prime is 52121053. The next prime is 52121081. The reversal of 52121055 is 55012125.

It is not a de Polignac number, because 52121055 - 2¹ = 52121053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52121053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34722 + ... + 36191.

It is an arithmetic number, because the mean of its divisors is an integer number (4042098).

Almost surely, 2^52121055 is an apocalyptic number.

52121055 is a deficient number, since it is larger than the sum of its proper divisors (44889297).

52121055 is a wasteful number, since it uses less digits than its factorization.

52121055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70935 (or 70928 counting only the distinct ones).

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

The square root of 52121055 is about 7219.4913255714. The cubic root of 52121055 is about 373.5405316859.

The spelling of 52121055 in words is "fifty-two million, one hundred twenty-one thousand, fifty-five".