55591953425 has 12 divisors (see below), whose sum is σ = 68948764080. Its totient is φ = 44464051920.

The previous prime is 55591953421. The next prime is 55591953437. The reversal of 55591953425 is 52435919555.

It is not a de Polignac number, because 55591953425 - 2² = 55591953421 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55591953421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117335 + ... + 353484.

It is an arithmetic number, because the mean of its divisors is an integer number (5745730340).

Almost surely, 2^55591953425 is an apocalyptic number.

It is an amenable number.

55591953425 is a deficient number, since it is larger than the sum of its proper divisors (13356810655).

55591953425 is a wasteful number, since it uses less digits than its factorization.

55591953425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475552 (or 475547 counting only the distinct ones).

The product of its digits is 6075000, while the sum is 53.

The spelling of 55591953425 in words is "fifty-five billion, five hundred ninety-one million, nine hundred fifty-three thousand, four hundred twenty-five".