55415545 has 8 divisors (see below), whose sum is σ = 67144896. Its totient is φ = 43901616.

The previous prime is 55415537. The next prime is 55415557. The reversal of 55415545 is 54551455.

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 55415545 - 2³ = 55415537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55415545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53287 + ... + 54316.

It is an arithmetic number, because the mean of its divisors is an integer number (8393112).

Almost surely, 2^55415545 is an apocalyptic number.

It is an amenable number.

55415545 is a deficient number, since it is larger than the sum of its proper divisors (11729351).

55415545 is a wasteful number, since it uses less digits than its factorization.

55415545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107711.

The product of its digits is 50000, while the sum is 34.

The square root of 55415545 is about 7444.1618064091. The cubic root of 55415545 is about 381.2506003753.

The spelling of 55415545 in words is "fifty-five million, four hundred fifteen thousand, five hundred forty-five".