55414421 has 4 divisors (see below), whose sum is σ = 55595232. Its totient is φ = 55233612.

The previous prime is 55414399. The next prime is 55414423. The reversal of 55414421 is 12441455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55414421 - 2¹⁴ = 55398037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55414423) 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, 89945 + ... + 90558.

It is an arithmetic number, because the mean of its divisors is an integer number (13898808).

Almost surely, 2^55414421 is an apocalyptic number.

It is an amenable number.

55414421 is a deficient number, since it is larger than the sum of its proper divisors (180811).

55414421 is a wasteful number, since it uses less digits than its factorization.

55414421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180810.

The product of its digits is 3200, while the sum is 26.

The square root of 55414421 is about 7444.0863106227. The cubic root of 55414421 is about 381.2480227077.

Adding to 55414421 its reverse (12441455), we get a palindrome (67855876).

The spelling of 55414421 in words is "fifty-five million, four hundred fourteen thousand, four hundred twenty-one".