253345455 has 32 divisors (see below), whose sum is σ = 491339520. Its totient is φ = 122833440.

The previous prime is 253345439. The next prime is 253345481. The reversal of 253345455 is 554543352.

It is not a de Polignac number, because 253345455 - 2⁴ = 253345439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83817 + ... + 86786.

It is an arithmetic number, because the mean of its divisors is an integer number (15354360).

Almost surely, 2^253345455 is an apocalyptic number.

253345455 is a deficient number, since it is larger than the sum of its proper divisors (237994065).

253345455 is a wasteful number, since it uses less digits than its factorization.

253345455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170628 (or 170622 counting only the distinct ones).

The product of its digits is 180000, while the sum is 36.

The square root of 253345455 is about 15916.8293010888. The cubic root of 253345455 is about 632.7580890940.

The spelling of 253345455 in words is "two hundred fifty-three million, three hundred forty-five thousand, four hundred fifty-five".