53747712005 has 64 divisors (see below), whose sum is σ = 73313166528. Its totient is φ = 37553725440.

The previous prime is 53747711999. The next prime is 53747712043. The reversal of 53747712005 is 50021774735.

It can be written as a sum of positive squares in 32 ways, for example, as 21283600321 + 32464111684 = 145889^2 + 180178^2 .

It is a de Polignac number, because none of the positive numbers 2^k-53747712005 is a prime.

It is a super-2 number, since 2×53747712005² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39145499 + ... + 39146871.

It is an arithmetic number, because the mean of its divisors is an integer number (1145518227).

Almost surely, 2^53747712005 is an apocalyptic number.

It is an amenable number.

53747712005 is a deficient number, since it is larger than the sum of its proper divisors (19565454523).

53747712005 is a wasteful number, since it uses less digits than its factorization.

53747712005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866.

The product of its (nonzero) digits is 205800, while the sum is 41.

The spelling of 53747712005 in words is "fifty-three billion, seven hundred forty-seven million, seven hundred twelve thousand, five".