53966637512 has 36 divisors (see below), whose sum is σ = 105807809835. Its totient is φ = 25802903280.

The previous prime is 53966637509. The next prime is 53966637523. The reversal of 53966637512 is 21573666935.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 26983318756 + 26983318756 = 164266^2 + 164266^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=164266.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15110687 + ... + 15114257.

Almost surely, 2^53966637512 is an apocalyptic number.

It is an amenable number.

53966637512 is a deficient number, since it is larger than the sum of its proper divisors (51841172323).

53966637512 is an frugal number, since it uses more digits than its factorization.

53966637512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7194 (or 3596 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 53.

The spelling of 53966637512 in words is "fifty-three billion, nine hundred sixty-six million, six hundred thirty-seven thousand, five hundred twelve".