53665625938 has 8 divisors (see below), whose sum is σ = 80505899532. Its totient is φ = 26830326096.

The previous prime is 53665625927. The next prime is 53665625939. The reversal of 53665625938 is 83952656635.

It can be written as a sum of positive squares in 2 ways, for example, as 44864746969 + 8800878969 = 211813^2 + 93813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53665625939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1216345 + ... + 1259692.

Almost surely, 2^53665625938 is an apocalyptic number.

53665625938 is a deficient number, since it is larger than the sum of its proper divisors (26840273594).

53665625938 is a wasteful number, since it uses less digits than its factorization.

53665625938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486876.

The product of its digits is 34992000, while the sum is 58.

The spelling of 53665625938 in words is "fifty-three billion, six hundred sixty-five million, six hundred twenty-five thousand, nine hundred thirty-eight".