55622405 has 16 divisors (see below), whose sum is σ = 70519680. Its totient is φ = 42000192.

The previous prime is 55622389. The next prime is 55622429. The reversal of 55622405 is 50422655.

It is a cyclic number.

It is not a de Polignac number, because 55622405 - 2⁴ = 55622389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29192 + ... + 31038.

It is an arithmetic number, because the mean of its divisors is an integer number (4407480).

Almost surely, 2^55622405 is an apocalyptic number.

It is an amenable number.

55622405 is a deficient number, since it is larger than the sum of its proper divisors (14897275).

55622405 is a wasteful number, since it uses less digits than its factorization.

55622405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 55622405 is about 7458.0429738639. The cubic root of 55622405 is about 381.7243998611.

The spelling of 55622405 in words is "fifty-five million, six hundred twenty-two thousand, four hundred five".