80071550 has 48 divisors (see below), whose sum is σ = 163864512. Its totient is φ = 28924800.

The previous prime is 80071531. The next prime is 80071553. The reversal of 80071550 is 5517008.

It is a super-2 number, since 2×80071550² = 12822906238805000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80071553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29240 + ... + 31860.

It is an arithmetic number, because the mean of its divisors is an integer number (3413844).

Almost surely, 2^80071550 is an apocalyptic number.

80071550 is an abundant number, since it is smaller than the sum of its proper divisors (83792962).

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

80071550 is a wasteful number, since it uses less digits than its factorization.

80071550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693 (or 2688 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 80071550 is about 8948.2707826708. The cubic root of 80071550 is about 431.0153578972.

Adding to 80071550 its reverse (5517008), we get a palindrome (85588558).

The spelling of 80071550 in words is "eighty million, seventy-one thousand, five hundred fifty".