55630347 has 16 divisors (see below), whose sum is σ = 79896960. Its totient is φ = 34316352.

The previous prime is 55630327. The next prime is 55630349. The reversal of 55630347 is 74303655.

It is not a de Polignac number, because 55630347 - 2⁷ = 55630219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55630349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8898 + ... + 13799.

It is an arithmetic number, because the mean of its divisors is an integer number (4993560).

Almost surely, 2^55630347 is an apocalyptic number.

55630347 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

55630347 is a deficient number, since it is larger than the sum of its proper divisors (24266613).

55630347 is a wasteful number, since it uses less digits than its factorization.

55630347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22762.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 55630347 is about 7458.5754001686. The cubic root of 55630347 is about 381.7425670661.

It can be divided in two parts, 556 and 30347, that added together give a palindrome (30903).

The spelling of 55630347 in words is "fifty-five million, six hundred thirty thousand, three hundred forty-seven".