2210155245 has 24 divisors (see below), whose sum is σ = 3873987000. Its totient is φ = 1165502976.

The previous prime is 2210155231. The next prime is 2210155247. The reversal of 2210155245 is 5425510122.

2210155245 is a `hidden beast` number, since 2 + 2 + 101 + 552 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 20196036 + 2189959209 = 4494^2 + 46797^2 .

It is not a de Polignac number, because 2210155245 - 2²² = 2205960941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210155247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271920 + ... + 279929.

It is an arithmetic number, because the mean of its divisors is an integer number (161416125).

Almost surely, 2^2210155245 is an apocalyptic number.

It is an amenable number.

2210155245 is a deficient number, since it is larger than the sum of its proper divisors (1663831755).

2210155245 is a wasteful number, since it uses less digits than its factorization.

2210155245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551949 (or 551946 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2210155245 is about 47012.2882340352. The cubic root of 2210155245 is about 1302.5895611263.

Adding to 2210155245 its reverse (5425510122), we get a palindrome (7635665367).

The spelling of 2210155245 in words is "two billion, two hundred ten million, one hundred fifty-five thousand, two hundred forty-five".