54752728 has 8 divisors (see below), whose sum is σ = 102661380. Its totient is φ = 27376360.

The previous prime is 54752707. The next prime is 54752729. The reversal of 54752728 is 82725745.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×54752728² = 5995722446883968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54752729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3422038 + ... + 3422053.

Almost surely, 2^54752728 is an apocalyptic number.

It is an amenable number.

54752728 is a deficient number, since it is larger than the sum of its proper divisors (47908652).

54752728 is a wasteful number, since it uses less digits than its factorization.

54752728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6844097 (or 6844093 counting only the distinct ones).

The product of its digits is 156800, while the sum is 40.

The square root of 54752728 is about 7399.5086323350. The cubic root of 54752728 is about 379.7244724777.

The spelling of 54752728 in words is "fifty-four million, seven hundred fifty-two thousand, seven hundred twenty-eight".