56775541 has 2 divisors, whose sum is σ = 56775542. Its totient is φ = 56775540.

The previous prime is 56775517. The next prime is 56775559. The reversal of 56775541 is 14557765.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35153041 + 21622500 = 5929^2 + 4650^2 .

It is a cyclic number.

It is not a de Polignac number, because 56775541 - 2⁷ = 56775413 is a prime.

It is equal to p_3381898 and since 56775541 and 3381898 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 56775494 and 56775503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56775581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28387770 + 28387771.

It is an arithmetic number, because the mean of its divisors is an integer number (28387771).

Almost surely, 2^56775541 is an apocalyptic number.

It is an amenable number.

56775541 is a deficient number, since it is larger than the sum of its proper divisors (1).

56775541 is an equidigital number, since it uses as much as digits as its factorization.

56775541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147000, while the sum is 40.

The square root of 56775541 is about 7534.9546116748. The cubic root of 56775541 is about 384.3442844207.

The spelling of 56775541 in words is "fifty-six million, seven hundred seventy-five thousand, five hundred forty-one".