53290745637578 has 4 divisors (see below), whose sum is σ = 79936118456370. Its totient is φ = 26645372818788.

The previous prime is 53290745637541. The next prime is 53290745637581. The reversal of 53290745637578 is 87573654709235.

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., 51447811780369 + 1842933857209 = 7172713^2 + 1357547^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13322686409393 + ... + 13322686409396.

Almost surely, 2^{53290745637578} is an apocalyptic number.

53290745637578 is a deficient number, since it is larger than the sum of its proper divisors (26645372818792).

53290745637578 is a wasteful number, since it uses less digits than its factorization.

53290745637578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26645372818791.

The product of its (nonzero) digits is 1333584000, while the sum is 71.

The spelling of 53290745637578 in words is "fifty-three trillion, two hundred ninety billion, seven hundred forty-five million, six hundred thirty-seven thousand, five hundred seventy-eight".