53665883425 has 48 divisors (see below), whose sum is σ = 83054398464. Its totient is φ = 33418440000.

The previous prime is 53665883413. The next prime is 53665883431. The reversal of 53665883425 is 52438856635.

It is a happy number.

It is not a de Polignac number, because 53665883425 - 2¹¹ = 53665881377 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian 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 in 47 ways as a sum of consecutive naturals, for example, 1854820 + ... + 1883530.

It is an arithmetic number, because the mean of its divisors is an integer number (1730299968).

Almost surely, 2^53665883425 is an apocalyptic number.

53665883425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53665883425 is a deficient number, since it is larger than the sum of its proper divisors (29388515039).

53665883425 is a wasteful number, since it uses less digits than its factorization.

53665883425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29710 (or 29705 counting only the distinct ones).

The product of its digits is 20736000, while the sum is 55.

The spelling of 53665883425 in words is "fifty-three billion, six hundred sixty-five million, eight hundred eighty-three thousand, four hundred twenty-five".