55630747 has 4 divisors (see below), whose sum is σ = 55809936. Its totient is φ = 55451560.

The previous prime is 55630739. The next prime is 55630763. The reversal of 55630747 is 74703655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55630747 - 2³ = 55630739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55630717) 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, 89128 + ... + 89749.

It is an arithmetic number, because the mean of its divisors is an integer number (13952484).

Almost surely, 2^55630747 is an apocalyptic number.

55630747 is a deficient number, since it is larger than the sum of its proper divisors (179189).

55630747 is a wasteful number, since it uses less digits than its factorization.

55630747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179188.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 55630747 is about 7458.6022148925. The cubic root of 55630747 is about 381.7434820144.

The spelling of 55630747 in words is "fifty-five million, six hundred thirty thousand, seven hundred forty-seven".