54520231 has 2 divisors, whose sum is σ = 54520232. Its totient is φ = 54520230.

The previous prime is 54520217. The next prime is 54520267. The reversal of 54520231 is 13202545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54520231 - 2¹³ = 54512039 is a prime.

It is a super-2 number, since 2×54520231² = 5944911176586722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54920231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27260115 + 27260116.

It is an arithmetic number, because the mean of its divisors is an integer number (27260116).

Almost surely, 2^54520231 is an apocalyptic number.

54520231 is a deficient number, since it is larger than the sum of its proper divisors (1).

54520231 is an equidigital number, since it uses as much as digits as its factorization.

54520231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 54520231 is about 7383.7816191976. The cubic root of 54520231 is about 379.1862341040.

Adding to 54520231 its reverse (13202545), we get a palindrome (67722776).

The spelling of 54520231 in words is "fifty-four million, five hundred twenty thousand, two hundred thirty-one".