52121238 has 16 divisors (see below), whose sum is σ = 112261296. Its totient is φ = 16037280.

The previous prime is 52121221. The next prime is 52121257. The reversal of 52121238 is 83212125.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 334033 + ... + 334188.

It is an arithmetic number, because the mean of its divisors is an integer number (7016331).

Almost surely, 2^52121238 is an apocalyptic number.

52121238 is an abundant number, since it is smaller than the sum of its proper divisors (60140058).

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

52121238 is a wasteful number, since it uses less digits than its factorization.

52121238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668239.

The product of its digits is 960, while the sum is 24.

The square root of 52121238 is about 7219.5039995834. The cubic root of 52121238 is about 373.5409688595.

The spelling of 52121238 in words is "fifty-two million, one hundred twenty-one thousand, two hundred thirty-eight".