78053331 has 8 divisors (see below), whose sum is σ = 104565184. Its totient is φ = 51788520.

The previous prime is 78053321. The next prime is 78053333. The reversal of 78053331 is 13335087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78053331 - 2¹⁰ = 78052307 is a prime.

It is a super-2 number, since 2×78053331² = 12184644960391122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78053333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61021 + ... + 62286.

It is an arithmetic number, because the mean of its divisors is an integer number (13070648).

Almost surely, 2^78053331 is an apocalyptic number.

78053331 is a deficient number, since it is larger than the sum of its proper divisors (26511853).

78053331 is a wasteful number, since it uses less digits than its factorization.

78053331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123521.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 78053331 is about 8834.7796237371. The cubic root of 78053331 is about 427.3632242583.

The spelling of 78053331 in words is "seventy-eight million, fifty-three thousand, three hundred thirty-one".