550909977 has 4 divisors (see below), whose sum is σ = 734546640. Its totient is φ = 367273316.

The previous prime is 550909951. The next prime is 550909987. The reversal of 550909977 is 779909055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 550909977 - 2¹⁴ = 550893593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550909987) 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, 91818327 + ... + 91818332.

It is an arithmetic number, because the mean of its divisors is an integer number (183636660).

Almost surely, 2^550909977 is an apocalyptic number.

It is an amenable number.

550909977 is a deficient number, since it is larger than the sum of its proper divisors (183636663).

550909977 is a wasteful number, since it uses less digits than its factorization.

550909977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183636662.

The product of its (nonzero) digits is 893025, while the sum is 51.

The square root of 550909977 is about 23471.4715559123. The cubic root of 550909977 is about 819.7728783038.

The spelling of 550909977 in words is "five hundred fifty million, nine hundred nine thousand, nine hundred seventy-seven".