252011555 has 16 divisors (see below), whose sum is σ = 318069504. Its totient is φ = 191418240.

The previous prime is 252011527. The next prime is 252011567. The reversal of 252011555 is 555110252.

It is not a de Polignac number, because 252011555 - 2²⁴ = 235234339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7124 + ... + 23553.

It is an arithmetic number, because the mean of its divisors is an integer number (19879344).

Almost surely, 2^252011555 is an apocalyptic number.

252011555 is a deficient number, since it is larger than the sum of its proper divisors (66057949).

252011555 is a wasteful number, since it uses less digits than its factorization.

252011555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30766.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 252011555 is about 15874.8718105061. The cubic root of 252011555 is about 631.6456137894.

The spelling of 252011555 in words is "two hundred fifty-two million, eleven thousand, five hundred fifty-five".