55620629 has 8 divisors (see below), whose sum is σ = 57441120. Its totient is φ = 53824176.

The previous prime is 55620613. The next prime is 55620659. The reversal of 55620629 is 92602655.

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 55620629 - 2⁴ = 55620613 is a prime.

It is a super-3 number, since 3×55620629³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55620659) 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, 1247 + ... + 10620.

It is an arithmetic number, because the mean of its divisors is an integer number (7180140).

Almost surely, 2^55620629 is an apocalyptic number.

It is an amenable number.

55620629 is a deficient number, since it is larger than the sum of its proper divisors (1820491).

55620629 is a wasteful number, since it uses less digits than its factorization.

55620629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12019.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 55620629 is about 7457.9239068255. The cubic root of 55620629 is about 381.7203370514.

The spelling of 55620629 in words is "fifty-five million, six hundred twenty thousand, six hundred twenty-nine".