551155454 has 4 divisors (see below), whose sum is σ = 826733184. Its totient is φ = 275577726.

The previous prime is 551155391. The next prime is 551155459. The reversal of 551155454 is 454551155.

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

It is a super-2 number, since 2×551155454² = 607544668947892232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551155459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137788862 + ... + 137788865.

It is an arithmetic number, because the mean of its divisors is an integer number (206683296).

Almost surely, 2^551155454 is an apocalyptic number.

551155454 is a deficient number, since it is larger than the sum of its proper divisors (275577730).

551155454 is a wasteful number, since it uses less digits than its factorization.

551155454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275577729.

The product of its digits is 50000, while the sum is 35.

The square root of 551155454 is about 23476.7002366176. The cubic root of 551155454 is about 819.8946196127.

The spelling of 551155454 in words is "five hundred fifty-one million, one hundred fifty-five thousand, four hundred fifty-four".