551257404752155 has 8 divisors (see below), whose sum is σ = 662149262171232. Its totient is φ = 440579006155968.

The previous prime is 551257404752149. The next prime is 551257404752183.

551257404752155 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551257404752155 - 2¹³ = 551257404743963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551257404752155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53364700039 + ... + 53364710368.

It is an arithmetic number, because the mean of its divisors is an integer number (82768657771404).

Almost surely, 2^{551257404752155} is an apocalyptic number.

551257404752155 is a deficient number, since it is larger than the sum of its proper divisors (110891857419077).

551257404752155 is a wasteful number, since it uses less digits than its factorization.

551257404752155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106729411445.

The product of its (nonzero) digits is 49000000, while the sum is 58.

It can be divided in two parts, 55125740 and 4752155, that added together give a palindrome (59877895).

The spelling of 551257404752155 in words is "five hundred fifty-one trillion, two hundred fifty-seven billion, four hundred four million, seven hundred fifty-two thousand, one hundred fifty-five".