55420014 has 16 divisors (see below), whose sum is σ = 119366352. Its totient is φ = 17052288.

The previous prime is 55419929. The next prime is 55420039. The reversal of 55420014 is 41002455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355179 + ... + 355334.

It is an arithmetic number, because the mean of its divisors is an integer number (7460397).

Almost surely, 2^55420014 is an apocalyptic number.

55420014 is an abundant number, since it is smaller than the sum of its proper divisors (63946338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55420014 is a wasteful number, since it uses less digits than its factorization.

55420014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710531.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 55420014 is about 7444.4619684703. The cubic root of 55420014 is about 381.2608487820.

Adding to 55420014 its reverse (41002455), we get a palindrome (96422469).

The spelling of 55420014 in words is "fifty-five million, four hundred twenty thousand, fourteen".