54272690 has 16 divisors (see below), whose sum is σ = 98114328. Its totient is φ = 21614976.

The previous prime is 54272681. The next prime is 54272693. The reversal of 54272690 is 9627245.

It is a Cunningham number, because it is equal to 7367²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 19545241 + 34727449 = 4421^2 + 5893^2 .

It is a super-2 number, since 2×54272690² = 5891049759672200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54272690.

It is not an unprimeable number, because it can be changed into a prime (54272693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9317 + ... + 13976.

Almost surely, 2^54272690 is an apocalyptic number.

54272690 is a deficient number, since it is larger than the sum of its proper divisors (43841638).

54272690 is a wasteful number, since it uses less digits than its factorization.

54272690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23533.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 54272690 is about 7367.0000678702. Note that the first 4 decimals coincide. The cubic root of 54272690 is about 378.6114838019.

The spelling of 54272690 in words is "fifty-four million, two hundred seventy-two thousand, six hundred ninety".