551525143 has 8 divisors (see below), whose sum is σ = 597735488. Its totient is φ = 505855584.

The previous prime is 551525113. The next prime is 551525167. The reversal of 551525143 is 341525155.

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

It is a de Polignac number, because none of the positive numbers 2^k-551525143 is a prime.

It is a super-2 number, since 2×551525143² = 608359966722340898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551525113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133071 + ... + 137152.

It is an arithmetic number, because the mean of its divisors is an integer number (74716936).

Almost surely, 2^551525143 is an apocalyptic number.

551525143 is a deficient number, since it is larger than the sum of its proper divisors (46210345).

551525143 is a wasteful number, since it uses less digits than its factorization.

551525143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270393.

The product of its digits is 15000, while the sum is 31.

The square root of 551525143 is about 23484.5724466084. The cubic root of 551525143 is about 820.0778941471.

The spelling of 551525143 in words is "five hundred fifty-one million, five hundred twenty-five thousand, one hundred forty-three".