54772481 has 4 divisors (see below), whose sum is σ = 54798852. Its totient is φ = 54746112.

The previous prime is 54772457. The next prime is 54772483. The reversal of 54772481 is 18427745.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46362481 + 8410000 = 6809^2 + 2900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54772481 is a prime.

It is a super-2 number, since 2×54772481² = 6000049349790722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54772483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9776 + ... + 14321.

It is an arithmetic number, because the mean of its divisors is an integer number (13699713).

Almost surely, 2^54772481 is an apocalyptic number.

It is an amenable number.

54772481 is a deficient number, since it is larger than the sum of its proper divisors (26371).

54772481 is a wasteful number, since it uses less digits than its factorization.

54772481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26370.

The product of its digits is 62720, while the sum is 38.

The square root of 54772481 is about 7400.8432627640. The cubic root of 54772481 is about 379.7701310592.

The spelling of 54772481 in words is "fifty-four million, seven hundred seventy-two thousand, four hundred eighty-one".