54431719 has 2 divisors, whose sum is σ = 54431720. Its totient is φ = 54431718.

The previous prime is 54431701. The next prime is 54431747. The reversal of 54431719 is 91713445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54431719 - 2⁷ = 54431591 is a prime.

It is a super-2 number, since 2×54431719² = 5925624066589922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54431749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27215859 + 27215860.

It is an arithmetic number, because the mean of its divisors is an integer number (27215860).

Almost surely, 2^54431719 is an apocalyptic number.

54431719 is a deficient number, since it is larger than the sum of its proper divisors (1).

54431719 is an equidigital number, since it uses as much as digits as its factorization.

54431719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 54431719 is about 7377.7855078607. The cubic root of 54431719 is about 378.9809237062.

The spelling of 54431719 in words is "fifty-four million, four hundred thirty-one thousand, seven hundred nineteen".