8901020052 has 18 divisors (see below), whose sum is σ = 22499800778. Its totient is φ = 2967006672.

The previous prime is 8901020047. The next prime is 8901020053. The reversal of 8901020052 is 2500201098.

It can be written as a sum of positive squares in only one way, i.e., 7653800196 + 1247219856 = 87486^2 + 35316^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×8901020052² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8901019998 and 8901020025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8901020053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123625243 + ... + 123625314.

Almost surely, 2^8901020052 is an apocalyptic number.

It is an amenable number.

8901020052 is an abundant number, since it is smaller than the sum of its proper divisors (13598780726).

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

8901020052 is a wasteful number, since it uses less digits than its factorization.

8901020052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247250567 (or 247250562 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 8901020052 is about 94345.2174304559. The cubic root of 8901020052 is about 2072.4302675397.

The spelling of 8901020052 in words is "eight billion, nine hundred one million, twenty thousand, fifty-two".