53281990377001 has 32 divisors (see below), whose sum is σ = 56024138619680. Its totient is φ = 50623250006016.

The previous prime is 53281990376933. The next prime is 53281990377073. The reversal of 53281990377001 is 10077309918235.

It can be written as a sum of positive squares in 16 ways, for example, as 10831240477225 + 42450749899776 = 3291085^2 + 6515424^2 .

It is a cyclic number.

It is not a de Polignac number, because 53281990377001 - 2¹⁷ = 53281990245929 is a prime.

It is a super-2 number, since 2×53281990377001² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53281990372001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381778705 + ... + 381918241.

It is an arithmetic number, because the mean of its divisors is an integer number (1750754331865).

Almost surely, 2^{53281990377001} is an apocalyptic number.

It is an amenable number.

53281990377001 is a deficient number, since it is larger than the sum of its proper divisors (2742148242679).

53281990377001 is a wasteful number, since it uses less digits than its factorization.

53281990377001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141053.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 53281990377001 in words is "fifty-three trillion, two hundred eighty-one billion, nine hundred ninety million, three hundred seventy-seven thousand, one".