55576947 has 8 divisors (see below), whose sum is σ = 77324544. Its totient is φ = 35440328.

The previous prime is 55576943. The next prime is 55576949. The reversal of 55576947 is 74967555.

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

It is a cyclic number.

It is not a de Polignac number, because 55576947 - 2² = 55576943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55576896 and 55576905.

It is not an unprimeable number, because it can be changed into a prime (55576943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402663 + ... + 402800.

It is an arithmetic number, because the mean of its divisors is an integer number (9665568).

Almost surely, 2^55576947 is an apocalyptic number.

55576947 is a deficient number, since it is larger than the sum of its proper divisors (21747597).

55576947 is a wasteful number, since it uses less digits than its factorization.

55576947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805489.

The product of its digits is 1323000, while the sum is 48.

The square root of 55576947 is about 7454.9947686098. The cubic root of 55576947 is about 381.6203820823.

The spelling of 55576947 in words is "fifty-five million, five hundred seventy-six thousand, nine hundred forty-seven".