222525505 has 16 divisors (see below), whose sum is σ = 269568000. Its totient is φ = 176338240.

The previous prime is 222525493. The next prime is 222525509. The reversal of 222525505 is 505525222.

It is not a de Polignac number, because 222525505 - 2¹⁵ = 222492737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222525509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371196 + ... + 371794.

It is an arithmetic number, because the mean of its divisors is an integer number (16848000).

Almost surely, 2^222525505 is an apocalyptic number.

It is an amenable number.

222525505 is a deficient number, since it is larger than the sum of its proper divisors (47042495).

222525505 is a wasteful number, since it uses less digits than its factorization.

222525505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 222525505 is about 14917.2887952201. The cubic root of 222525505 is about 605.9822897081.

It can be divided in two parts, 2225 and 25505, that added together give a triangular number (27730 = T₂₃₅).

The spelling of 222525505 in words is "two hundred twenty-two million, five hundred twenty-five thousand, five hundred five".