78053311 has 16 divisors (see below), whose sum is σ = 94658560. Its totient is φ = 62868960.

The previous prime is 78053303. The next prime is 78053317. The reversal of 78053311 is 11335087.

It is not a de Polignac number, because 78053311 - 2³ = 78053303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78053311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78053317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14581 + ... + 19201.

It is an arithmetic number, because the mean of its divisors is an integer number (5916160).

Almost surely, 2^78053311 is an apocalyptic number.

78053311 is a deficient number, since it is larger than the sum of its proper divisors (16605249).

78053311 is a wasteful number, since it uses less digits than its factorization.

78053311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 78053311 is about 8834.7784918469. The cubic root of 78053311 is about 427.3631877565.

Adding to 78053311 its reverse (11335087), we get a palindrome (89388398).

The spelling of 78053311 in words is "seventy-eight million, fifty-three thousand, three hundred eleven".