53965250644 has 6 divisors (see below), whose sum is σ = 94439188634. Its totient is φ = 26982625320.

The previous prime is 53965250623. The next prime is 53965250711. The reversal of 53965250644 is 44605256935.

It can be written as a sum of positive squares in only one way, i.e., 53074944400 + 890306244 = 230380^2 + 29838^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6745656327 + ... + 6745656334.

Almost surely, 2^53965250644 is an apocalyptic number.

It is an amenable number.

53965250644 is a deficient number, since it is larger than the sum of its proper divisors (40473937990).

53965250644 is a wasteful number, since it uses less digits than its factorization.

53965250644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13491312665 (or 13491312663 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 53965250644 in words is "fifty-three billion, nine hundred sixty-five million, two hundred fifty thousand, six hundred forty-four".