57504409 has 4 divisors (see below), whose sum is σ = 58479120. Its totient is φ = 56529700.

The previous prime is 57504407. The next prime is 57504449. The reversal of 57504409 is 90440575.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57504409 - 2¹ = 57504407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57504407) 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, 487267 + ... + 487384.

It is an arithmetic number, because the mean of its divisors is an integer number (14619780).

Almost surely, 2^57504409 is an apocalyptic number.

57504409 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

57504409 is a deficient number, since it is larger than the sum of its proper divisors (974711).

57504409 is an equidigital number, since it uses as much as digits as its factorization.

57504409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974710.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 57504409 is about 7583.1661593295. The cubic root of 57504409 is about 385.9819964399.

The spelling of 57504409 in words is "fifty-seven million, five hundred four thousand, four hundred nine".