55546473 has 4 divisors (see below), whose sum is σ = 74061968. Its totient is φ = 37030980.

The previous prime is 55546471. The next prime is 55546487. The reversal of 55546473 is 37464555.

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 not a de Polignac number, because 55546473 - 2¹ = 55546471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55546471) 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, 9257743 + ... + 9257748.

It is an arithmetic number, because the mean of its divisors is an integer number (18515492).

Almost surely, 2^55546473 is an apocalyptic number.

It is an amenable number.

55546473 is a deficient number, since it is larger than the sum of its proper divisors (18515495).

55546473 is a wasteful number, since it uses less digits than its factorization.

55546473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18515494.

The product of its digits is 252000, while the sum is 39.

The square root of 55546473 is about 7452.9506237463. The cubic root of 55546473 is about 381.5506191898.

The spelling of 55546473 in words is "fifty-five million, five hundred forty-six thousand, four hundred seventy-three".