55315205 has 16 divisors (see below), whose sum is σ = 72619200. Its totient is φ = 40114560.

The previous prime is 55315187. The next prime is 55315237. The reversal of 55315205 is 50251355.

It is not a de Polignac number, because 55315205 - 2¹⁴ = 55298821 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, 21266 + ... + 23724.

It is an arithmetic number, because the mean of its divisors is an integer number (4538700).

Almost surely, 2^55315205 is an apocalyptic number.

55315205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55315205 is a deficient number, since it is larger than the sum of its proper divisors (17303995).

55315205 is a wasteful number, since it uses less digits than its factorization.

55315205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 55315205 is about 7437.4192432590. The cubic root of 55315205 is about 381.0203533238.

The spelling of 55315205 in words is "fifty-five million, three hundred fifteen thousand, two hundred five".