550972439 has 4 divisors (see below), whose sum is σ = 565863624. Its totient is φ = 536081256.

The previous prime is 550972403. The next prime is 550972447. The reversal of 550972439 is 934279055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 934279055 = 5 ⋅186855811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550972439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550972439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550972039) 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, 7445537 + ... + 7445610.

It is an arithmetic number, because the mean of its divisors is an integer number (141465906).

Almost surely, 2^550972439 is an apocalyptic number.

550972439 is a deficient number, since it is larger than the sum of its proper divisors (14891185).

550972439 is a wasteful number, since it uses less digits than its factorization.

550972439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14891184.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 550972439 is about 23472.8021122319. The cubic root of 550972439 is about 819.8038589967.

The spelling of 550972439 in words is "five hundred fifty million, nine hundred seventy-two thousand, four hundred thirty-nine".