80520633 has 6 divisors (see below), whose sum is σ = 116307594. Its totient is φ = 53680416.

The previous prime is 80520623. The next prime is 80520637. The reversal of 80520633 is 33602508.

80520633 is a `hidden beast` number, since 8 + 0 + 5 + 20 + 633 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44195904 + 36324729 = 6648^2 + 6027^2 .

It is not a de Polignac number, because 80520633 - 2¹³ = 80512441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80520597 and 80520606.

It is not an unprimeable number, because it can be changed into a prime (80520637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4473360 + ... + 4473377.

It is an arithmetic number, because the mean of its divisors is an integer number (19384599).

Almost surely, 2^80520633 is an apocalyptic number.

It is an amenable number.

80520633 is a deficient number, since it is larger than the sum of its proper divisors (35786961).

80520633 is a wasteful number, since it uses less digits than its factorization.

80520633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8946743 (or 8946740 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 80520633 is about 8973.3289809301. The cubic root of 80520633 is about 431.8196424334.

The spelling of 80520633 in words is "eighty million, five hundred twenty thousand, six hundred thirty-three".