52051555 has 8 divisors (see below), whose sum is σ = 63317952. Its totient is φ = 41070528.

The previous prime is 52051523. The next prime is 52051567. The reversal of 52051555 is 55515025.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52051555 - 2⁵ = 52051523 is a prime.

It is a Duffinian 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, 70939 + ... + 71668.

It is an arithmetic number, because the mean of its divisors is an integer number (7914744).

Almost surely, 2^52051555 is an apocalyptic number.

52051555 is a deficient number, since it is larger than the sum of its proper divisors (11266397).

52051555 is a wasteful number, since it uses less digits than its factorization.

52051555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142685.

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 52051555 is about 7214.6763614177. The cubic root of 52051555 is about 373.3744272544.

The spelling of 52051555 in words is "fifty-two million, fifty-one thousand, five hundred fifty-five".