253305555 has 32 divisors (see below), whose sum is σ = 425170944. Its totient is φ = 128532096.

The previous prime is 253305539. The next prime is 253305571. The reversal of 253305555 is 555503352.

253305555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (253305539) and next prime (253305571).

It is not a de Polignac number, because 253305555 - 2⁴ = 253305539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66102 + ... + 69828.

It is an arithmetic number, because the mean of its divisors is an integer number (13286592).

Almost surely, 2^253305555 is an apocalyptic number.

253305555 is a deficient number, since it is larger than the sum of its proper divisors (171865389).

253305555 is a wasteful number, since it uses less digits than its factorization.

253305555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955.

The product of its (nonzero) digits is 56250, while the sum is 33.

The square root of 253305555 is about 15915.5758614007. The cubic root of 253305555 is about 632.7248691398.

The spelling of 253305555 in words is "two hundred fifty-three million, three hundred five thousand, five hundred fifty-five".