80820252 has 36 divisors (see below), whose sum is σ = 213180240. Its totient is φ = 25768512.

The previous prime is 80820251. The next prime is 80820253. The reversal of 80820252 is 25202808.

It is an interprime number because it is at equal distance from previous prime (80820251) and next prime (80820253).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80820251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47977 + ... + 49632.

Almost surely, 2^80820252 is an apocalyptic number.

It is an amenable number.

80820252 is an abundant number, since it is smaller than the sum of its proper divisors (132359988).

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

80820252 is a wasteful number, since it uses less digits than its factorization.

80820252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97642 (or 97637 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 80820252 is about 8990.0084538336. The cubic root of 80820252 is about 432.3545828522.

The spelling of 80820252 in words is "eighty million, eight hundred twenty thousand, two hundred fifty-two".