57621241 has 4 divisors (see below), whose sum is σ = 58041972. Its totient is φ = 57200512.

The previous prime is 57621191. The next prime is 57621253. The reversal of 57621241 is 14212675.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24960016 + 32661225 = 4996^2 + 5715^2 .

It is a cyclic number.

It is not a de Polignac number, because 57621241 - 2¹¹ = 57619193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57621341) 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, 210160 + ... + 210433.

It is an arithmetic number, because the mean of its divisors is an integer number (14510493).

Almost surely, 2^57621241 is an apocalyptic number.

It is an amenable number.

57621241 is a deficient number, since it is larger than the sum of its proper divisors (420731).

57621241 is a wasteful number, since it uses less digits than its factorization.

57621241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420730.

The product of its digits is 3360, while the sum is 28.

The square root of 57621241 is about 7590.8656291625. The cubic root of 57621241 is about 386.2432201377.

The spelling of 57621241 in words is "fifty-seven million, six hundred twenty-one thousand, two hundred forty-one".