53383500778 has 4 divisors (see below), whose sum is σ = 80075251170. Its totient is φ = 26691750388.

The previous prime is 53383500769. The next prime is 53383500787. The reversal of 53383500778 is 87700538335.

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

It is an interprime number because it is at equal distance from previous prime (53383500769) and next prime (53383500787).

It can be written as a sum of positive squares in only one way, i.e., 51532178049 + 1851322729 = 227007^2 + 43027^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13345875193 + ... + 13345875196.

Almost surely, 2^53383500778 is an apocalyptic number.

53383500778 is a deficient number, since it is larger than the sum of its proper divisors (26691750392).

53383500778 is a wasteful number, since it uses less digits than its factorization.

53383500778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26691750391.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 53383500778 in words is "fifty-three billion, three hundred eighty-three million, five hundred thousand, seven hundred seventy-eight".