57242851 has 4 divisors (see below), whose sum is σ = 58460832. Its totient is φ = 56024872.

The previous prime is 57242849. The next prime is 57242981. The reversal of 57242851 is 15824275.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57242851 - 2¹ = 57242849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57242821) 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, 608920 + ... + 609013.

It is an arithmetic number, because the mean of its divisors is an integer number (14615208).

Almost surely, 2^57242851 is an apocalyptic number.

57242851 is a deficient number, since it is larger than the sum of its proper divisors (1217981).

57242851 is a wasteful number, since it uses less digits than its factorization.

57242851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217980.

The product of its digits is 22400, while the sum is 34.

The square root of 57242851 is about 7565.9005412442. The cubic root of 57242851 is about 385.3958956786.

The spelling of 57242851 in words is "fifty-seven million, two hundred forty-two thousand, eight hundred fifty-one".