54739621225 has 27 divisors (see below), whose sum is σ = 68927221839. Its totient is φ = 43124428800.

The previous prime is 54739621217. The next prime is 54739621229. The reversal of 54739621225 is 52212693745.

The square root of 54739621225 is 233965.

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

It can be written as a sum of positive squares in 13 ways, for example, as 7964313049 + 46775308176 = 89243^2 + 216276^2 .

It is not a de Polignac number, because 54739621225 - 2³ = 54739621217 is a prime.

It is a super-2 number, since 2×54739621225² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54739621229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 85396905 + ... + 85397545.

Almost surely, 2^54739621225 is an apocalyptic number.

54739621225 is the 233965-th square number.

54739621225 is the 116983-rd centered octagonal number.

It is an amenable number.

54739621225 is a deficient number, since it is larger than the sum of its proper divisors (14187600614).

54739621225 is an frugal number, since it uses more digits than its factorization.

54739621225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438 (or 719 counting only the distinct ones).

The product of its digits is 907200, while the sum is 46.

The spelling of 54739621225 in words is "fifty-four billion, seven hundred thirty-nine million, six hundred twenty-one thousand, two hundred twenty-five".