28465051 has 4 divisors (see below), whose sum is σ = 28526472. Its totient is φ = 28403632.

The previous prime is 28465049. The next prime is 28465057. The reversal of 28465051 is 15056482.

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

It is a cyclic number.

It is not a de Polignac number, because 28465051 - 2¹ = 28465049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28465057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30010 + ... + 30943.

It is an arithmetic number, because the mean of its divisors is an integer number (7131618).

Almost surely, 2^28465051 is an apocalyptic number.

28465051 is a deficient number, since it is larger than the sum of its proper divisors (61421).

28465051 is an equidigital number, since it uses as much as digits as its factorization.

28465051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61420.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 28465051 is about 5335.2648481589. The cubic root of 28465051 is about 305.3308279840.

The spelling of 28465051 in words is "twenty-eight million, four hundred sixty-five thousand, fifty-one".