54257743 has 4 divisors (see below), whose sum is σ = 55281528. Its totient is φ = 53233960.

The previous prime is 54257729. The next prime is 54257771. The reversal of 54257743 is 34775245.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54257743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54257143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511813 + ... + 511918.

It is an arithmetic number, because the mean of its divisors is an integer number (13820382).

Almost surely, 2^54257743 is an apocalyptic number.

54257743 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

54257743 is a deficient number, since it is larger than the sum of its proper divisors (1023785).

54257743 is a wasteful number, since it uses less digits than its factorization.

54257743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023784.

The product of its digits is 117600, while the sum is 37.

The square root of 54257743 is about 7365.9855416638. The cubic root of 54257743 is about 378.5767233761.

It can be divided in two parts, 542 and 57743, that added together give a palindrome (58285).

The spelling of 54257743 in words is "fifty-four million, two hundred fifty-seven thousand, seven hundred forty-three".