55474966 has 4 divisors (see below), whose sum is σ = 83212452. Its totient is φ = 27737482.

The previous prime is 55474949. The next prime is 55474967. The reversal of 55474966 is 66947455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66947455 = 5 ⋅13389491.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55474967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13868740 + ... + 13868743.

It is an arithmetic number, because the mean of its divisors is an integer number (20803113).

Almost surely, 2^55474966 is an apocalyptic number.

55474966 is a deficient number, since it is larger than the sum of its proper divisors (27737486).

55474966 is a wasteful number, since it uses less digits than its factorization.

55474966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27737485.

The product of its digits is 907200, while the sum is 46.

The square root of 55474966 is about 7448.1518512984. The cubic root of 55474966 is about 381.3868208738.

The spelling of 55474966 in words is "fifty-five million, four hundred seventy-four thousand, nine hundred sixty-six".