55351642957 has 8 divisors (see below), whose sum is σ = 60877748736. Its totient is φ = 50006721072.

The previous prime is 55351642921. The next prime is 55351642991. The reversal of 55351642957 is 75924615355.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55351642957 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 (55351642057) 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 7 ways as a sum of consecutive naturals, for example, 45295333 + ... + 45296554.

It is an arithmetic number, because the mean of its divisors is an integer number (7609718592).

Almost surely, 2^55351642957 is an apocalyptic number.

It is an amenable number.

55351642957 is a deficient number, since it is larger than the sum of its proper divisors (5526105779).

55351642957 is a wasteful number, since it uses less digits than its factorization.

55351642957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90591947.

The product of its digits is 5670000, while the sum is 52.

The spelling of 55351642957 in words is "fifty-five billion, three hundred fifty-one million, six hundred forty-two thousand, nine hundred fifty-seven".