253285845 has 16 divisors (see below), whose sum is σ = 407980800. Its totient is φ = 134177984.

The previous prime is 253285819. The next prime is 253285861. The reversal of 253285845 is 548582352.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 253285845 - 2¹³ = 253277653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253285797 and 253285806.

It is a congruent 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, 54429 + ... + 58898.

It is an arithmetic number, because the mean of its divisors is an integer number (25498800).

Almost surely, 2^253285845 is an apocalyptic number.

It is an amenable number.

253285845 is a deficient number, since it is larger than the sum of its proper divisors (154694955).

253285845 is a wasteful number, since it uses less digits than its factorization.

253285845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113484.

The product of its digits is 384000, while the sum is 42.

The square root of 253285845 is about 15914.9566446158. The cubic root of 253285845 is about 632.7084576947.

The spelling of 253285845 in words is "two hundred fifty-three million, two hundred eighty-five thousand, eight hundred forty-five".