55077511 has 2 divisors, whose sum is σ = 55077512. Its totient is φ = 55077510.

The previous prime is 55077431. The next prime is 55077521. The reversal of 55077511 is 11577055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55077511 - 2⁹ = 55076999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55077521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27538755 + 27538756.

It is an arithmetic number, because the mean of its divisors is an integer number (27538756).

Almost surely, 2^55077511 is an apocalyptic number.

55077511 is a deficient number, since it is larger than the sum of its proper divisors (1).

55077511 is an equidigital number, since it uses as much as digits as its factorization.

55077511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6125, while the sum is 31.

The square root of 55077511 is about 7421.4224377810. The cubic root of 55077511 is about 380.4738110967.

The spelling of 55077511 in words is "fifty-five million, seventy-seven thousand, five hundred eleven".