80709550 has 12 divisors (see below), whose sum is σ = 150119856. Its totient is φ = 32283800.

The previous prime is 80709547. The next prime is 80709593. The reversal of 80709550 is 5590708.

It is a super-2 number, since 2×80709550² = 13028062922405000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 807046 + ... + 807145.

It is an arithmetic number, because the mean of its divisors is an integer number (12509988).

Almost surely, 2^80709550 is an apocalyptic number.

80709550 is a deficient number, since it is larger than the sum of its proper divisors (69410306).

80709550 is a wasteful number, since it uses less digits than its factorization.

80709550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614203 (or 1614198 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 80709550 is about 8983.8493976691. The cubic root of 80709550 is about 432.1570895036.

The spelling of 80709550 in words is "eighty million, seven hundred nine thousand, five hundred fifty".