55731958267456 has 21 divisors (see below), whose sum is σ = 110593223200081. Its totient is φ = 27865949272192.

The previous prime is 55731958267441. The next prime is 55731958267463. The reversal of 55731958267456 is 65476285913755.

The square root of 55731958267456 is 7465384.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 49927790721600 + 5804167545856 = 7065960^2 + 2409184^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 59256486 + ... + 60189658.

Almost surely, 2^{55731958267456} is an apocalyptic number.

55731958267456 is the 7465384-th square number.

It is an amenable number.

55731958267456 is a deficient number, since it is larger than the sum of its proper divisors (54861264932625).

55731958267456 is an frugal number, since it uses more digits than its factorization.

55731958267456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866358 (or 933175 counting only the distinct ones).

The product of its digits is 1905120000, while the sum is 73.

The spelling of 55731958267456 in words is "fifty-five trillion, seven hundred thirty-one billion, nine hundred fifty-eight million, two hundred sixty-seven thousand, four hundred fifty-six".