55641415 has 8 divisors (see below), whose sum is σ = 66813840. Its totient is φ = 44483712.

The previous prime is 55641413. The next prime is 55641473. The reversal of 55641415 is 51414655.

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

It is a cyclic number.

It is not a de Polignac number, because 55641415 - 2¹ = 55641413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55641413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8032 + ... + 13258.

It is an arithmetic number, because the mean of its divisors is an integer number (8351730).

Almost surely, 2^55641415 is an apocalyptic number.

55641415 is a deficient number, since it is larger than the sum of its proper divisors (11172425).

55641415 is a wasteful number, since it uses less digits than its factorization.

55641415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7361.

The product of its digits is 12000, while the sum is 31.

The square root of 55641415 is about 7459.3173280133. The cubic root of 55641415 is about 381.7678820653.

The spelling of 55641415 in words is "fifty-five million, six hundred forty-one thousand, four hundred fifteen".