548551922 has 4 divisors (see below), whose sum is σ = 822827886. Its totient is φ = 274275960.

The previous prime is 548551841. The next prime is 548551943. The reversal of 548551922 is 229155845.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 289374121 + 259177801 = 17011^2 + 16099^2 .

It is a super-2 number, since 2×548551922² = 601818422259788168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 548551922.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137137979 + ... + 137137982.

Almost surely, 2^548551922 is an apocalyptic number.

548551922 is a deficient number, since it is larger than the sum of its proper divisors (274275964).

548551922 is a wasteful number, since it uses less digits than its factorization.

548551922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274275963.

The product of its digits is 144000, while the sum is 41.

The square root of 548551922 is about 23421.1853244023. The cubic root of 548551922 is about 818.6015834003.

The spelling of 548551922 in words is "five hundred forty-eight million, five hundred fifty-one thousand, nine hundred twenty-two".