80749455 has 32 divisors (see below), whose sum is σ = 132572160. Its totient is φ = 41957760.

The previous prime is 80749453. The next prime is 80749457. The reversal of 80749455 is 55494708.

It is an interprime number because it is at equal distance from previous prime (80749453) and next prime (80749457).

It is not a de Polignac number, because 80749455 - 2¹ = 80749453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80749453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97945 + ... + 98765.

It is an arithmetic number, because the mean of its divisors is an integer number (4142880).

Almost surely, 2^80749455 is an apocalyptic number.

80749455 is a deficient number, since it is larger than the sum of its proper divisors (51822705).

80749455 is a wasteful number, since it uses less digits than its factorization.

80749455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 80749455 is about 8986.0700531434. The cubic root of 80749455 is about 432.2283011809.

The spelling of 80749455 in words is "eighty million, seven hundred forty-nine thousand, four hundred fifty-five".