253380455 has 4 divisors (see below), whose sum is σ = 304056552. Its totient is φ = 202704360.

The previous prime is 253380437. The next prime is 253380473. The reversal of 253380455 is 554083352.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (253380437) and next prime (253380473).

It is not a de Polignac number, because 253380455 - 2¹² = 253376359 is a prime.

It is a super-3 number, since 3×253380455³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25338041 + ... + 25338050.

It is an arithmetic number, because the mean of its divisors is an integer number (76014138).

Almost surely, 2^253380455 is an apocalyptic number.

253380455 is a deficient number, since it is larger than the sum of its proper divisors (50676097).

253380455 is an equidigital number, since it uses as much as digits as its factorization.

253380455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50676096.

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 253380455 is about 15917.9287283239. The cubic root of 253380455 is about 632.7872265332.

The spelling of 253380455 in words is "two hundred fifty-three million, three hundred eighty thousand, four hundred fifty-five".