240255134351553 has 4 divisors (see below), whose sum is σ = 320340179135408. Its totient is φ = 160170089567700.

The previous prime is 240255134351543. The next prime is 240255134351563. The reversal of 240255134351553 is 355153431552042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (240255134351543) and next prime (240255134351563).

It is not a de Polignac number, because 240255134351553 - 2¹⁸ = 240255134089409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240255134351503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40042522391923 + ... + 40042522391928.

It is an arithmetic number, because the mean of its divisors is an integer number (80085044783852).

Almost surely, 2^{240255134351553} is an apocalyptic number.

It is an amenable number.

240255134351553 is a deficient number, since it is larger than the sum of its proper divisors (80085044783855).

240255134351553 is an equidigital number, since it uses as much as digits as its factorization.

240255134351553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80085044783854.

The product of its (nonzero) digits is 5400000, while the sum is 48.

The spelling of 240255134351553 in words is "two hundred forty trillion, two hundred fifty-five billion, one hundred thirty-four million, three hundred fifty-one thousand, five hundred fifty-three".