551373155 has 16 divisors (see below), whose sum is σ = 701322624. Its totient is φ = 414704640.

The previous prime is 551373139. The next prime is 551373157.

551373155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 551373155 - 2⁴ = 551373139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551373157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90815 + ... + 96695.

It is an arithmetic number, because the mean of its divisors is an integer number (43832664).

Almost surely, 2^551373155 is an apocalyptic number.

551373155 is a deficient number, since it is larger than the sum of its proper divisors (149949469).

551373155 is a wasteful number, since it uses less digits than its factorization.

551373155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7006.

The product of its digits is 39375, while the sum is 35.

The square root of 551373155 is about 23481.3363120586. The cubic root of 551373155 is about 820.0025555145.

The spelling of 551373155 in words is "five hundred fifty-one million, three hundred seventy-three thousand, one hundred fifty-five".