28152355 has 32 divisors (see below), whose sum is σ = 42674688. Its totient is φ = 17318400.

The previous prime is 28152353. The next prime is 28152367. The reversal of 28152355 is 55325182.

It is not a de Polignac number, because 28152355 - 2¹ = 28152353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28152353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31515 + ... + 32395.

It is an arithmetic number, because the mean of its divisors is an integer number (1333584).

Almost surely, 2^28152355 is an apocalyptic number.

28152355 is a deficient number, since it is larger than the sum of its proper divisors (14522333).

28152355 is a wasteful number, since it uses less digits than its factorization.

28152355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987.

The product of its digits is 12000, while the sum is 31.

The square root of 28152355 is about 5305.8792862258. The cubic root of 28152355 is about 304.2086625778.

The spelling of 28152355 in words is "twenty-eight million, one hundred fifty-two thousand, three hundred fifty-five".