42551248 has 10 divisors (see below), whose sum is σ = 82443074. Its totient is φ = 21275616.

The previous prime is 42551237. The next prime is 42551261. The reversal of 42551248 is 84215524.

It can be written as a sum of positive squares in only one way, i.e., 26132544 + 16418704 = 5112^2 + 4052^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329711 + ... + 1329742.

Almost surely, 2^42551248 is an apocalyptic number.

It is an amenable number.

42551248 is a deficient number, since it is larger than the sum of its proper divisors (39891826).

42551248 is a wasteful number, since it uses less digits than its factorization.

42551248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659461 (or 2659455 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

The square root of 42551248 is about 6523.1317631947. The cubic root of 42551248 is about 349.1168154372.

The spelling of 42551248 in words is "forty-two million, five hundred fifty-one thousand, two hundred forty-eight".