80902530 has 64 divisors (see below), whose sum is σ = 217296000. Its totient is φ = 21418560.

The previous prime is 80902519. The next prime is 80902543. The reversal of 80902530 is 3520908.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 80902494 and 80902503.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39225 + ... + 41235.

It is an arithmetic number, because the mean of its divisors is an integer number (3395250).

Almost surely, 2^80902530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80902530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108648000).

80902530 is an abundant number, since it is smaller than the sum of its proper divisors (136393470).

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

80902530 is a wasteful number, since it uses less digits than its factorization.

80902530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176 (or 2170 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 80902530 is about 8994.5833700066. The cubic root of 80902530 is about 432.5012507342.

The spelling of 80902530 in words is "eighty million, nine hundred two thousand, five hundred thirty".