55615422 has 8 divisors (see below), whose sum is σ = 111230856. Its totient is φ = 18538472.

The previous prime is 55615409. The next prime is 55615423. The reversal of 55615422 is 22451655.

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

55615422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 55615422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55615423) 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, 4634613 + ... + 4634624.

It is an arithmetic number, because the mean of its divisors is an integer number (13903857).

Almost surely, 2^55615422 is an apocalyptic number.

55615422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55615422 is a wasteful number, since it uses less digits than its factorization.

55615422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9269242.

The product of its digits is 12000, while the sum is 30.

The square root of 55615422 is about 7457.5748068658. The cubic root of 55615422 is about 381.7084249254.

The spelling of 55615422 in words is "fifty-five million, six hundred fifteen thousand, four hundred twenty-two".