80253765 has 24 divisors (see below), whose sum is σ = 139335768. Its totient is φ = 42731520.

The previous prime is 80253763. The next prime is 80253799. The reversal of 80253765 is 56735208.

It can be written as a sum of positive squares in 4 ways, for example, as 19554084 + 60699681 = 4422^2 + 7791^2 .

It is not a de Polignac number, because 80253765 - 2¹ = 80253763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80253763) 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 23 ways as a sum of consecutive naturals, for example, 37525 + ... + 39605.

It is an arithmetic number, because the mean of its divisors is an integer number (5805657).

Almost surely, 2^80253765 is an apocalyptic number.

It is an amenable number.

80253765 is a deficient number, since it is larger than the sum of its proper divisors (59082003).

80253765 is a wasteful number, since it uses less digits than its factorization.

80253765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949 (or 2946 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 80253765 is about 8958.4465729277. The cubic root of 80253765 is about 431.3420572221.

It can be divided in two parts, 80253 and 765, that added together give a palindrome (81018).

The spelling of 80253765 in words is "eighty million, two hundred fifty-three thousand, seven hundred sixty-five".