78051059 has 4 divisors (see below), whose sum is σ = 78068760. Its totient is φ = 78033360.

The previous prime is 78051053. The next prime is 78051073. The reversal of 78051059 is 95015087.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 78051059 - 2²⁴ = 61273843 is a prime.

It is a super-2 number, since 2×78051059² = 12183935622042962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78051053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3644 + ... + 13014.

It is an arithmetic number, because the mean of its divisors is an integer number (19517190).

Almost surely, 2^78051059 is an apocalyptic number.

78051059 is a deficient number, since it is larger than the sum of its proper divisors (17701).

78051059 is an equidigital number, since it uses as much as digits as its factorization.

78051059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17700.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 78051059 is about 8834.6510400808. The cubic root of 78051059 is about 427.3590776120.

The spelling of 78051059 in words is "seventy-eight million, fifty-one thousand, fifty-nine".