54721252 has 12 divisors (see below), whose sum is σ = 96517120. Its totient is φ = 27144936.

The previous prime is 54721243. The next prime is 54721253. The reversal of 54721252 is 25212745.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 54721252.

It is not an unprimeable number, because it can be changed into a prime (54721253) 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, 53352 + ... + 54367.

Almost surely, 2^54721252 is an apocalyptic number.

It is an amenable number.

54721252 is a deficient number, since it is larger than the sum of its proper divisors (41795868).

54721252 is a wasteful number, since it uses less digits than its factorization.

54721252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107850 (or 107848 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 54721252 is about 7397.3814285867. The cubic root of 54721252 is about 379.6516937687.

Adding to 54721252 its reverse (25212745), we get a palindrome (79933997).

It can be divided in two parts, 5472 and 1252, that added together give a square (6724 = 82²).

The spelling of 54721252 in words is "fifty-four million, seven hundred twenty-one thousand, two hundred fifty-two".