15231055 has 24 divisors (see below), whose sum is σ = 21450528. Its totient is φ = 10170048.

The previous prime is 15231053. The next prime is 15231059. The reversal of 15231055 is 55013251.

15231055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15231055 - 2¹ = 15231053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15231053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77217 + ... + 77413.

It is an arithmetic number, because the mean of its divisors is an integer number (893772).

Almost surely, 2^15231055 is an apocalyptic number.

15231055 is a deficient number, since it is larger than the sum of its proper divisors (6219473).

15231055 is an equidigital number, since it uses as much as digits as its factorization.

15231055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 15231055 is about 3902.6984254487. The cubic root of 15231055 is about 247.8810509610.

The spelling of 15231055 in words is "fifteen million, two hundred thirty-one thousand, fifty-five".