655050215 has 16 divisors (see below), whose sum is σ = 801514560. Its totient is φ = 513838080.

The previous prime is 655050191. The next prime is 655050217. The reversal of 655050215 is 512050556.

It is not a de Polignac number, because 655050215 - 2²⁰ = 654001639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655050217) 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, 46670 + ... + 59060.

It is an arithmetic number, because the mean of its divisors is an integer number (50094660).

Almost surely, 2^655050215 is an apocalyptic number.

655050215 is a deficient number, since it is larger than the sum of its proper divisors (146464345).

655050215 is a wasteful number, since it uses less digits than its factorization.

655050215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12602.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 655050215 is about 25593.9487965417. The cubic root of 655050215 is about 868.4767528068.

It can be divided in two parts, 6550 and 50215, that added together give a palindrome (56765).

The spelling of 655050215 in words is "six hundred fifty-five million, fifty thousand, two hundred fifteen".