80361554 has 16 divisors (see below), whose sum is σ = 148360128. Its totient is φ = 31791312.

The previous prime is 80361553. The next prime is 80361613. The reversal of 80361554 is 45516308.

It is a happy number.

It is a super-2 number, since 2×80361554² = 12915958722589832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80361554.

It is not an unprimeable number, because it can be changed into a prime (80361553) 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 7 ways as a sum of consecutive naturals, for example, 220592 + ... + 220955.

It is an arithmetic number, because the mean of its divisors is an integer number (9272508).

Almost surely, 2^80361554 is an apocalyptic number.

80361554 is a deficient number, since it is larger than the sum of its proper divisors (67998574).

80361554 is a wasteful number, since it uses less digits than its factorization.

80361554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441569.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 80361554 is about 8964.4606084248. The cubic root of 80361554 is about 431.5350829705.

The spelling of 80361554 in words is "eighty million, three hundred sixty-one thousand, five hundred fifty-four".