55523945 has 8 divisors (see below), whose sum is σ = 68778240. Its totient is φ = 42986160.

The previous prime is 55523911. The next prime is 55523971. The reversal of 55523945 is 54932555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55523945 - 2¹⁴ = 55507561 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55523899 and 55523908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178955 + ... + 179264.

It is an arithmetic number, because the mean of its divisors is an integer number (8597280).

Almost surely, 2^55523945 is an apocalyptic number.

It is an amenable number.

55523945 is a deficient number, since it is larger than the sum of its proper divisors (13254295).

55523945 is a wasteful number, since it uses less digits than its factorization.

55523945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358255.

The product of its digits is 135000, while the sum is 38.

The square root of 55523945 is about 7451.4391227467. The cubic root of 55523945 is about 381.4990303478.

The spelling of 55523945 in words is "fifty-five million, five hundred twenty-three thousand, nine hundred forty-five".