80406554 has 8 divisors (see below), whose sum is σ = 120663540. Its totient is φ = 40185376.

The previous prime is 80406539. The next prime is 80406559. The reversal of 80406554 is 45560408.

It can be written as a sum of positive squares in 2 ways, for example, as 76965529 + 3441025 = 8773^2 + 1855^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 80406554.

It is not an unprimeable number, because it can be changed into a prime (80406559) 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, 2369 + ... + 12900.

Almost surely, 2^80406554 is an apocalyptic number.

80406554 is a deficient number, since it is larger than the sum of its proper divisors (40256986).

80406554 is a wasteful number, since it uses less digits than its factorization.

80406554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17904.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 80406554 is about 8966.9701683456. The cubic root of 80406554 is about 431.6156167341.

The spelling of 80406554 in words is "eighty million, four hundred six thousand, five hundred fifty-four".