28025502 has 16 divisors (see below), whose sum is σ = 57566352. Its totient is φ = 9089280.

The previous prime is 28025483. The next prime is 28025507. The reversal of 28025502 is 20552082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28025507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62899 + ... + 63342.

It is an arithmetic number, because the mean of its divisors is an integer number (3597897).

Almost surely, 2^28025502 is an apocalyptic number.

28025502 is an abundant number, since it is smaller than the sum of its proper divisors (29540850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28025502 is a wasteful number, since it uses less digits than its factorization.

28025502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126283.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 28025502 is about 5293.9117861936. The cubic root of 28025502 is about 303.7510586086.

Adding to 28025502 its reverse (20552082), we get a palindrome (48577584).

The spelling of 28025502 in words is "twenty-eight million, twenty-five thousand, five hundred two".