55420413 has 8 divisors (see below), whose sum is σ = 75891168. Its totient is φ = 35948304.

The previous prime is 55420381. The next prime is 55420427. The reversal of 55420413 is 31402455.

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

It is not a de Polignac number, because 55420413 - 2⁵ = 55420381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55420433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249531 + ... + 249752.

It is an arithmetic number, because the mean of its divisors is an integer number (9486396).

Almost surely, 2^55420413 is an apocalyptic number.

It is an amenable number.

55420413 is a deficient number, since it is larger than the sum of its proper divisors (20470755).

55420413 is a wasteful number, since it uses less digits than its factorization.

55420413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499323.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 55420413 is about 7444.4887668664. The cubic root of 55420413 is about 381.2617637506.

Adding to 55420413 its reverse (31402455), we get a palindrome (86822868).

The spelling of 55420413 in words is "fifty-five million, four hundred twenty thousand, four hundred thirteen".