855501028 has 6 divisors (see below), whose sum is σ = 1497126806. Its totient is φ = 427750512.

The previous prime is 855500999. The next prime is 855501041. The reversal of 855501028 is 820105558.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 756140004 + 99361024 = 27498^2 + 9968^2 .

It is a junction number, because it is equal to n+sod(n) for n = 855500984 and 855501002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106937625 + ... + 106937632.

Almost surely, 2^855501028 is an apocalyptic number.

It is an amenable number.

855501028 is a deficient number, since it is larger than the sum of its proper divisors (641625778).

855501028 is a wasteful number, since it uses less digits than its factorization.

855501028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213875261 (or 213875259 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 855501028 is about 29248.9491777055. The cubic root of 855501028 is about 949.3073540243.

The spelling of 855501028 in words is "eight hundred fifty-five million, five hundred one thousand, twenty-eight".