245215522 has 8 divisors (see below), whose sum is σ = 369255276. Its totient is φ = 122130432.

The previous prime is 245215507. The next prime is 245215573. The reversal of 245215522 is 225512542.

245215522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 241833601 + 3381921 = 15551^2 + 1839^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238023 + ... + 239050.

Almost surely, 2^245215522 is an apocalyptic number.

245215522 is a deficient number, since it is larger than the sum of its proper divisors (124039754).

245215522 is a wasteful number, since it uses less digits than its factorization.

245215522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477332.

The product of its digits is 8000, while the sum is 28.

The square root of 245215522 is about 15659.3589268527. The cubic root of 245215522 is about 625.9159025803.

The spelling of 245215522 in words is "two hundred forty-five million, two hundred fifteen thousand, five hundred twenty-two".