253708545 has 16 divisors (see below), whose sum is σ = 406141632. Its totient is φ = 135241920.

The previous prime is 253708537. The next prime is 253708583. The reversal of 253708545 is 545807352.

It is not a de Polignac number, because 253708545 - 2³ = 253708537 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41719 + ... + 47411.

It is an arithmetic number, because the mean of its divisors is an integer number (25383852).

Almost surely, 2^253708545 is an apocalyptic number.

It is an amenable number.

253708545 is a deficient number, since it is larger than the sum of its proper divisors (152433087).

253708545 is a wasteful number, since it uses less digits than its factorization.

253708545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8672.

The product of its (nonzero) digits is 168000, while the sum is 39.

The square root of 253708545 is about 15928.2310693937. The cubic root of 253708545 is about 633.0602305119.

The spelling of 253708545 in words is "two hundred fifty-three million, seven hundred eight thousand, five hundred forty-five".