76278825 has 72 divisors (see below), whose sum is σ = 164424000. Its totient is φ = 33022080.

The previous prime is 76278803. The next prime is 76278827. The reversal of 76278825 is 52887267.

It is not a de Polignac number, because 76278825 - 2⁹ = 76278313 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76278827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 28651 + ... + 31199.

Almost surely, 2^76278825 is an apocalyptic number.

76278825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

76278825 is an abundant number, since it is smaller than the sum of its proper divisors (88145175).

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

76278825 is a wasteful number, since it uses less digits than its factorization.

76278825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2583 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 76278825 is about 8733.7749570275. The cubic root of 76278825 is about 424.0997321612.

The spelling of 76278825 in words is "seventy-six million, two hundred seventy-eight thousand, eight hundred twenty-five".