66054031 has 2 divisors, whose sum is σ = 66054032. Its totient is φ = 66054030.

The previous prime is 66054019. The next prime is 66054077. The reversal of 66054031 is 13045066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66054031 - 2¹¹ = 66051983 is a prime.

It is a super-2 number, since 2×66054031² = 8726270022697922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66053987 and 66054005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66052031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33027015 + 33027016.

It is an arithmetic number, because the mean of its divisors is an integer number (33027016).

Almost surely, 2^66054031 is an apocalyptic number.

66054031 is a deficient number, since it is larger than the sum of its proper divisors (1).

66054031 is an equidigital number, since it uses as much as digits as its factorization.

66054031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 66054031 is about 8127.3631025075. The cubic root of 66054031 is about 404.2342508914.

Adding to 66054031 its reverse (13045066), we get a palindrome (79099097).

The spelling of 66054031 in words is "sixty-six million, fifty-four thousand, thirty-one".