53509312287390 has 16 divisors (see below), whose sum is σ = 128422349489808. Its totient is φ = 14269149943296.

The previous prime is 53509312287373. The next prime is 53509312287433. The reversal of 53509312287390 is 9378221390535.

It is a self number, because there is not a number n which added to its sum of digits gives 53509312287390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891821871427 + ... + 891821871486.

It is an arithmetic number, because the mean of its divisors is an integer number (8026396843113).

Almost surely, 2^{53509312287390} is an apocalyptic number.

53509312287390 is an abundant number, since it is smaller than the sum of its proper divisors (74913037202418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53509312287390 is a wasteful number, since it uses less digits than its factorization.

53509312287390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783643742923.

The product of its (nonzero) digits is 12247200, while the sum is 57.

The spelling of 53509312287390 in words is "fifty-three trillion, five hundred nine billion, three hundred twelve million, two hundred eighty-seven thousand, three hundred ninety".