551150143 has 4 divisors (see below), whose sum is σ = 555357528. Its totient is φ = 546942760.

The previous prime is 551150123. The next prime is 551150161. The reversal of 551150143 is 341051155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341051155 = 5 ⋅68210231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551150143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551150123) 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, 2103496 + ... + 2103757.

It is an arithmetic number, because the mean of its divisors is an integer number (138839382).

Almost surely, 2^551150143 is an apocalyptic number.

551150143 is a deficient number, since it is larger than the sum of its proper divisors (4207385).

551150143 is a wasteful number, since it uses less digits than its factorization.

551150143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207384.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 551150143 is about 23476.5871241967. The cubic root of 551150143 is about 819.8919860700.

The spelling of 551150143 in words is "five hundred fifty-one million, one hundred fifty thousand, one hundred forty-three".