80400533 has 4 divisors (see below), whose sum is σ = 84632160. Its totient is φ = 76168908.

The previous prime is 80400527. The next prime is 80400569. The reversal of 80400533 is 33500408.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80400533 - 2⁸ = 80400277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80400499 and 80400508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80400233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2115785 + ... + 2115822.

It is an arithmetic number, because the mean of its divisors is an integer number (21158040).

Almost surely, 2^80400533 is an apocalyptic number.

It is an amenable number.

80400533 is a deficient number, since it is larger than the sum of its proper divisors (4231627).

80400533 is a wasteful number, since it uses less digits than its factorization.

80400533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231626.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 80400533 is about 8966.6344299297. The cubic root of 80400533 is about 431.6048430580.

The spelling of 80400533 in words is "eighty million, four hundred thousand, five hundred thirty-three".