53305300778 has 4 divisors (see below), whose sum is σ = 79957951170. Its totient is φ = 26652650388.

The previous prime is 53305300757. The next prime is 53305300781. The reversal of 53305300778 is 87700350335.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52873783249 + 431517529 = 229943^2 + 20773^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13326325193 + ... + 13326325196.

Almost surely, 2^53305300778 is an apocalyptic number.

53305300778 is a deficient number, since it is larger than the sum of its proper divisors (26652650392).

53305300778 is a wasteful number, since it uses less digits than its factorization.

53305300778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26652650391.

The product of its (nonzero) digits is 264600, while the sum is 41.

The spelling of 53305300778 in words is "fifty-three billion, three hundred five million, three hundred thousand, seven hundred seventy-eight".