57211634 has 4 divisors (see below), whose sum is σ = 85817454. Its totient is φ = 28605816.

The previous prime is 57211631. The next prime is 57211639. The reversal of 57211634 is 43611275.

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

It can be written as a sum of positive squares in only one way, i.e., 40360609 + 16851025 = 6353^2 + 4105^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57211597 and 57211606.

It is not an unprimeable number, because it can be changed into a prime (57211631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14302907 + ... + 14302910.

Almost surely, 2^57211634 is an apocalyptic number.

57211634 is a deficient number, since it is larger than the sum of its proper divisors (28605820).

57211634 is a wasteful number, since it uses less digits than its factorization.

57211634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28605819.

The product of its digits is 5040, while the sum is 29.

The square root of 57211634 is about 7563.8372536696. The cubic root of 57211634 is about 385.3258252616.

The spelling of 57211634 in words is "fifty-seven million, two hundred eleven thousand, six hundred thirty-four".