550433251 has 4 divisors (see below), whose sum is σ = 558185904. Its totient is φ = 542680600.

The previous prime is 550433231. The next prime is 550433269. The reversal of 550433251 is 152334055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152334055 = 5 ⋅30466811.

It is a cyclic number.

It is not a de Polignac number, because 550433251 - 2⁹ = 550432739 is a prime.

It is a super-3 number, since 3×550433251³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550433231) 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, 3876220 + ... + 3876361.

It is an arithmetic number, because the mean of its divisors is an integer number (139546476).

Almost surely, 2^550433251 is an apocalyptic number.

550433251 is a deficient number, since it is larger than the sum of its proper divisors (7752653).

550433251 is an equidigital number, since it uses as much as digits as its factorization.

550433251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7752652.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 550433251 is about 23461.3139231374. The cubic root of 550433251 is about 819.5363485360.

The spelling of 550433251 in words is "five hundred fifty million, four hundred thirty-three thousand, two hundred fifty-one".