55565651031 has 24 divisors (see below), whose sum is σ = 85300498944. Its totient is φ = 31903716240.

The previous prime is 55565651027. The next prime is 55565651041. The reversal of 55565651031 is 13015656555.

It is a happy number.

It is not a de Polignac number, because 55565651031 - 2² = 55565651027 is a prime.

It is a super-2 number, since 2×55565651031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55565651041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2320231 + ... + 2344056.

It is an arithmetic number, because the mean of its divisors is an integer number (3554187456).

Almost surely, 2^55565651031 is an apocalyptic number.

55565651031 is a deficient number, since it is larger than the sum of its proper divisors (29734847913).

55565651031 is a wasteful number, since it uses less digits than its factorization.

55565651031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664339 (or 4664320 counting only the distinct ones).

The product of its (nonzero) digits is 337500, while the sum is 42.

The spelling of 55565651031 in words is "fifty-five billion, five hundred sixty-five million, six hundred fifty-one thousand, thirty-one".