253402245 has 48 divisors (see below), whose sum is σ = 446696640. Its totient is φ = 132876288.

The previous prime is 253402229. The next prime is 253402249. The reversal of 253402245 is 542204352.

It is a happy number.

253402245 is a `hidden beast` number, since 253 + 402 + 2 + 4 + 5 = 666.

253402245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253402245 - 2⁴ = 253402229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253402249) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1312869 + ... + 1313061.

It is an arithmetic number, because the mean of its divisors is an integer number (9306180).

Almost surely, 2^253402245 is an apocalyptic number.

It is an amenable number.

253402245 is a deficient number, since it is larger than the sum of its proper divisors (193294395).

253402245 is a wasteful number, since it uses less digits than its factorization.

253402245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 253402245 is about 15918.6131619560. The cubic root of 253402245 is about 632.8053653151.

Adding to 253402245 its reverse (542204352), we get a palindrome (795606597).

The spelling of 253402245 in words is "two hundred fifty-three million, four hundred two thousand, two hundred forty-five".