54431775 has 18 divisors (see below), whose sum is σ = 97493760. Its totient is φ = 29030160.

The previous prime is 54431771. The next prime is 54431779. The reversal of 54431775 is 57713445.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (54431771) and next prime (54431779).

It is not a de Polignac number, because 54431775 - 2² = 54431771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54431771) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 120735 + ... + 121184.

It is an arithmetic number, because the mean of its divisors is an integer number (5416320).

Almost surely, 2^54431775 is an apocalyptic number.

54431775 is a deficient number, since it is larger than the sum of its proper divisors (43061985).

54431775 is a wasteful number, since it uses less digits than its factorization.

54431775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241935 (or 241927 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 54431775 is about 7377.7893030365. The cubic root of 54431775 is about 378.9810536728.

The spelling of 54431775 in words is "fifty-four million, four hundred thirty-one thousand, seven hundred seventy-five".