10215055 has 4 divisors (see below), whose sum is σ = 12258072. Its totient is φ = 8172040.

The previous prime is 10215031. The next prime is 10215067. The reversal of 10215055 is 55051201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10215055 - 2⁷ = 10214927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021501 + ... + 1021510.

It is an arithmetic number, because the mean of its divisors is an integer number (3064518).

Almost surely, 2^10215055 is an apocalyptic number.

10215055 is a deficient number, since it is larger than the sum of its proper divisors (2043017).

10215055 is an equidigital number, since it uses as much as digits as its factorization.

10215055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043016.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 10215055 is about 3196.0999671475. The cubic root of 10215055 is about 216.9769348374.

Adding to 10215055 its reverse (55051201), we get a palindrome (65266256).

The spelling of 10215055 in words is "ten million, two hundred fifteen thousand, fifty-five".