55617451149 has 16 divisors (see below), whose sum is σ = 84064164800. Its totient is φ = 32424748416.

The previous prime is 55617451079. The next prime is 55617451157. The reversal of 55617451149 is 94115471655.

It is not a de Polignac number, because 55617451149 - 2²³ = 55609062541 is a prime.

It is a super-2 number, since 2×55617451149² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55617451098 and 55617451107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55617451849) 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, 37527904 + ... + 37529385.

It is an arithmetic number, because the mean of its divisors is an integer number (5254010300).

Almost surely, 2^55617451149 is an apocalyptic number.

It is an amenable number.

55617451149 is a deficient number, since it is larger than the sum of its proper divisors (28446713651).

55617451149 is a wasteful number, since it uses less digits than its factorization.

55617451149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75057324.

The product of its digits is 756000, while the sum is 48.

The spelling of 55617451149 in words is "fifty-five billion, six hundred seventeen million, four hundred fifty-one thousand, one hundred forty-nine".