55531057835 has 16 divisors (see below), whose sum is σ = 72978082272. Its totient is φ = 40229068800.

The previous prime is 55531057831. The next prime is 55531057867. The reversal of 55531057835 is 53875013555.

It is not a de Polignac number, because 55531057835 - 2² = 55531057831 is a prime.

It is a super-2 number, since 2×55531057835² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55531057835.

It is not an unprimeable number, because it can be changed into a prime (55531057831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950176 + ... + 1978445.

It is an arithmetic number, because the mean of its divisors is an integer number (4561130142).

Almost surely, 2^55531057835 is an apocalyptic number.

55531057835 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55531057835 is a deficient number, since it is larger than the sum of its proper divisors (17447024437).

55531057835 is a wasteful number, since it uses less digits than its factorization.

55531057835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928894.

The product of its (nonzero) digits is 1575000, while the sum is 47.

The spelling of 55531057835 in words is "fifty-five billion, five hundred thirty-one million, fifty-seven thousand, eight hundred thirty-five".