55771051444630 has 64 divisors (see below), whose sum is σ = 103055275040256. Its totient is φ = 21718031328000.

The previous prime is 55771051444601. The next prime is 55771051444639. The reversal of 55771051444630 is 3644415017755.

It is a super-2 number, since 2×55771051444630² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55771051444639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393206425 + ... + 393348235.

It is an arithmetic number, because the mean of its divisors is an integer number (1610238672504).

Almost surely, 2^{55771051444630} is an apocalyptic number.

55771051444630 is a deficient number, since it is larger than the sum of its proper divisors (47284223595626).

55771051444630 is a wasteful number, since it uses less digits than its factorization.

55771051444630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143893.

The product of its (nonzero) digits is 7056000, while the sum is 52.

The spelling of 55771051444630 in words is "fifty-five trillion, seven hundred seventy-one billion, fifty-one million, four hundred forty-four thousand, six hundred thirty".