28555150 has 48 divisors (see below), whose sum is σ = 57746304. Its totient is φ = 10442880.

The previous prime is 28555133. The next prime is 28555171. The reversal of 28555150 is 5155582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127939 + ... + 128161.

It is an arithmetic number, because the mean of its divisors is an integer number (1203048).

Almost surely, 2^28555150 is an apocalyptic number.

28555150 is an abundant number, since it is smaller than the sum of its proper divisors (29191154).

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

28555150 is a wasteful number, since it uses less digits than its factorization.

28555150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 28555150 is about 5343.7019003683. The cubic root of 28555150 is about 305.6526381441.

The spelling of 28555150 in words is "twenty-eight million, five hundred fifty-five thousand, one hundred fifty".