54211671556 has 27 divisors (see below), whose sum is σ = 110366110407. Its totient is φ = 23232176520.

The previous prime is 54211671551. The next prime is 54211671557. The reversal of 54211671556 is 65517611245.

It is a happy number.

The square root of 54211671556 is 232834.

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

It is a super-2 number, since 2×54211671556² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54211671551) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3251361 + ... + 3267991.

Almost surely, 2^54211671556 is an apocalyptic number.

54211671556 is the 232834-th square number.

It is an amenable number.

54211671556 is an abundant number, since it is smaller than the sum of its proper divisors (56154438851).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54211671556 is an frugal number, since it uses more digits than its factorization.

54211671556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33280 (or 16640 counting only the distinct ones).

The product of its digits is 252000, while the sum is 43.

The spelling of 54211671556 in words is "fifty-four billion, two hundred eleven million, six hundred seventy-one thousand, five hundred fifty-six".