55619725925 has 12 divisors (see below), whose sum is σ = 68974576416. Its totient is φ = 44491834800.

The previous prime is 55619725859. The next prime is 55619725927. The reversal of 55619725925 is 52952791655.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-55619725925 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55619725927) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 207530 + ... + 392820.

It is an arithmetic number, because the mean of its divisors is an integer number (5747881368).

Almost surely, 2^55619725925 is an apocalyptic number.

It is an amenable number.

55619725925 is a deficient number, since it is larger than the sum of its proper divisors (13354850491).

55619725925 is a wasteful number, since it uses less digits than its factorization.

55619725925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197308 (or 197303 counting only the distinct ones).

The product of its digits is 8505000, while the sum is 56.

The spelling of 55619725925 in words is "fifty-five billion, six hundred nineteen million, seven hundred twenty-five thousand, nine hundred twenty-five".