78003255 has 32 divisors (see below), whose sum is σ = 137311488. Its totient is φ = 37810080.

The previous prime is 78003203. The next prime is 78003271. The reversal of 78003255 is 55230087.

It is a happy number.

It is not a de Polignac number, because 78003255 - 2¹¹ = 78001207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18012 + ... + 21918.

It is an arithmetic number, because the mean of its divisors is an integer number (4290984).

Almost surely, 2^78003255 is an apocalyptic number.

78003255 is a deficient number, since it is larger than the sum of its proper divisors (59308233).

78003255 is a wasteful number, since it uses less digits than its factorization.

78003255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948 (or 3926 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 78003255 is about 8831.9451424927. The cubic root of 78003255 is about 427.2718114649.

It can be divided in two parts, 780032 and 55, that added together give a palindrome (780087).

The spelling of 78003255 in words is "seventy-eight million, three thousand, two hundred fifty-five".