240551251204555 has 4 divisors (see below), whose sum is σ = 288661501445472. Its totient is φ = 192441000963640.

The previous prime is 240551251204541. The next prime is 240551251204591. The reversal of 240551251204555 is 555402152155042.

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

It is not a de Polignac number, because 240551251204555 - 2¹³ = 240551251196363 is a prime.

It is a Duffinian 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, 24055125120451 + ... + 24055125120460.

It is an arithmetic number, because the mean of its divisors is an integer number (72165375361368).

Almost surely, 2^{240551251204555} is an apocalyptic number.

240551251204555 is a deficient number, since it is larger than the sum of its proper divisors (48110250240917).

240551251204555 is an equidigital number, since it uses as much as digits as its factorization.

240551251204555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48110250240916.

The product of its (nonzero) digits is 2000000, while the sum is 46.

The spelling of 240551251204555 in words is "two hundred forty trillion, five hundred fifty-one billion, two hundred fifty-one million, two hundred four thousand, five hundred fifty-five".