55423415 has 16 divisors (see below), whose sum is σ = 67651200. Its totient is φ = 43583232.

The previous prime is 55423411. The next prime is 55423427. The reversal of 55423415 is 51432455.

It is a cyclic number.

It is not a de Polignac number, because 55423415 - 2² = 55423411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55423411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119474 + ... + 119936.

It is an arithmetic number, because the mean of its divisors is an integer number (4228200).

Almost surely, 2^55423415 is an apocalyptic number.

55423415 is a deficient number, since it is larger than the sum of its proper divisors (12227785).

55423415 is a wasteful number, since it uses less digits than its factorization.

55423415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826.

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

The square root of 55423415 is about 7444.6903898013. The cubic root of 55423415 is about 381.2686476591.

The spelling of 55423415 in words is "fifty-five million, four hundred twenty-three thousand, four hundred fifteen".