55101505 has 16 divisors (see below), whose sum is σ = 70474320. Its totient is φ = 41213952.

The previous prime is 55101451. The next prime is 55101509. The reversal of 55101505 is 50510155.

It can be written as a sum of positive squares in 8 ways, for example, as 576 + 55100929 = 24^2 + 7423^2 .

It is a cyclic number.

It is not a de Polignac number, because 55101505 - 2⁷ = 55101377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55101509) 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, 11281 + ... + 15409.

It is an arithmetic number, because the mean of its divisors is an integer number (4404645).

Almost surely, 2^55101505 is an apocalyptic number.

It is an amenable number.

55101505 is a deficient number, since it is larger than the sum of its proper divisors (15372815).

55101505 is a wasteful number, since it uses less digits than its factorization.

55101505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 55101505 is about 7423.0387982281. The cubic root of 55101505 is about 380.5290530222.

It can be divided in two parts, 5510150 and 5, that added together give a palindrome (5510155).

The spelling of 55101505 in words is "fifty-five million, one hundred one thousand, five hundred five".