57405541 has 2 divisors, whose sum is σ = 57405542. Its totient is φ = 57405540.

The previous prime is 57405527. The next prime is 57405547. The reversal of 57405541 is 14550475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35820225 + 21585316 = 5985^2 + 4646^2 .

It is a cyclic number.

It is not a de Polignac number, because 57405541 - 2¹³ = 57397349 is a prime.

It is a super-2 number, since 2×57405541² = 6590792275005362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57405547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28702770 + 28702771.

It is an arithmetic number, because the mean of its divisors is an integer number (28702771).

Almost surely, 2^57405541 is an apocalyptic number.

It is an amenable number.

57405541 is a deficient number, since it is larger than the sum of its proper divisors (1).

57405541 is an equidigital number, since it uses as much as digits as its factorization.

57405541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 57405541 is about 7576.6444419677. The cubic root of 57405541 is about 385.7606617633.

The spelling of 57405541 in words is "fifty-seven million, four hundred five thousand, five hundred forty-one".