54757642 has 4 divisors (see below), whose sum is σ = 82136466. Its totient is φ = 27378820.

The previous prime is 54757631. The next prime is 54757643. The reversal of 54757642 is 24675745.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24675745 = 5 ⋅4935149.

It can be written as a sum of positive squares in only one way, i.e., 29062881 + 25694761 = 5391^2 + 5069^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 54757595 and 54757604.

It is not an unprimeable number, because it can be changed into a prime (54757643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13689409 + ... + 13689412.

Almost surely, 2^54757642 is an apocalyptic number.

54757642 is a deficient number, since it is larger than the sum of its proper divisors (27378824).

54757642 is a wasteful number, since it uses less digits than its factorization.

54757642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27378823.

The product of its digits is 235200, while the sum is 40.

The square root of 54757642 is about 7399.8406739605. The cubic root of 54757642 is about 379.7358320958.

The spelling of 54757642 in words is "fifty-four million, seven hundred fifty-seven thousand, six hundred forty-two".