55615451654 has 16 divisors (see below), whose sum is σ = 97369302528. Its totient is φ = 23328061512.

The previous prime is 55615451651. The next prime is 55615451681. The reversal of 55615451654 is 45615451655.

It is a super-2 number, since 2×55615451654² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 55615451599 and 55615451608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55615451651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42260324 + ... + 42261639.

It is an arithmetic number, because the mean of its divisors is an integer number (6085581408).

Almost surely, 2^55615451654 is an apocalyptic number.

55615451654 is a deficient number, since it is larger than the sum of its proper divisors (41753850874).

55615451654 is a wasteful number, since it uses less digits than its factorization.

55615451654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84522019.

The product of its digits is 1800000, while the sum is 47.

Subtracting from 55615451654 its reverse (45615451655), we obtain a palindrome (9999999999).

The spelling of 55615451654 in words is "fifty-five billion, six hundred fifteen million, four hundred fifty-one thousand, six hundred fifty-four".