52002155 has 4 divisors (see below), whose sum is σ = 62402592. Its totient is φ = 41601720.

The previous prime is 52002143. The next prime is 52002157. The reversal of 52002155 is 55120025.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52002155 - 2⁶ = 52002091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52002157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5200211 + ... + 5200220.

It is an arithmetic number, because the mean of its divisors is an integer number (15600648).

Almost surely, 2^52002155 is an apocalyptic number.

52002155 is a deficient number, since it is larger than the sum of its proper divisors (10400437).

52002155 is a wasteful number, since it uses less digits than its factorization.

52002155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10400436.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 52002155 is about 7211.2519717453. The cubic root of 52002155 is about 373.2562717397.

The spelling of 52002155 in words is "fifty-two million, two thousand, one hundred fifty-five".