55619047 has 8 divisors (see below), whose sum is σ = 61407360. Its totient is φ = 49952760.

The previous prime is 55619041. The next prime is 55619089. The reversal of 55619047 is 74091655.

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

It is a de Polignac number, because none of the positive numbers 2^k-55619047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55618997 and 55619015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55619041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29547 + ... + 31372.

It is an arithmetic number, because the mean of its divisors is an integer number (7675920).

Almost surely, 2^55619047 is an apocalyptic number.

55619047 is a deficient number, since it is larger than the sum of its proper divisors (5788313).

55619047 is a wasteful number, since it uses less digits than its factorization.

55619047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61013.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 55619047 is about 7457.8178443832. The cubic root of 55619047 is about 381.7167179667.

The spelling of 55619047 in words is "fifty-five million, six hundred nineteen thousand, forty-seven".