53210639956 has 6 divisors (see below), whose sum is σ = 93118619930. Its totient is φ = 26605319976.

The previous prime is 53210639929. The next prime is 53210640013. The reversal of 53210639956 is 65993601235.

It can be written as a sum of positive squares in only one way, i.e., 39177868356 + 14032771600 = 197934^2 + 118460^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6651329991 + ... + 6651329998.

Almost surely, 2^53210639956 is an apocalyptic number.

It is an amenable number.

53210639956 is a deficient number, since it is larger than the sum of its proper divisors (39907979974).

53210639956 is a wasteful number, since it uses less digits than its factorization.

53210639956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13302659993 (or 13302659991 counting only the distinct ones).

The product of its (nonzero) digits is 1312200, while the sum is 49.

The spelling of 53210639956 in words is "fifty-three billion, two hundred ten million, six hundred thirty-nine thousand, nine hundred fifty-six".