55625577 has 16 divisors (see below), whose sum is σ = 85125120. Its totient is φ = 31650192.

The previous prime is 55625573. The next prime is 55625587. The reversal of 55625577 is 77552655.

55625577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55625577 - 2² = 55625573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55625573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523 + ... + 10560.

It is an arithmetic number, because the mean of its divisors is an integer number (5320320).

Almost surely, 2^55625577 is an apocalyptic number.

It is an amenable number.

55625577 is a deficient number, since it is larger than the sum of its proper divisors (29499543).

55625577 is a wasteful number, since it uses less digits than its factorization.

55625577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11332.

The product of its digits is 367500, while the sum is 42.

The square root of 55625577 is about 7458.2556271557. The cubic root of 55625577 is about 381.7316559706.

The spelling of 55625577 in words is "fifty-five million, six hundred twenty-five thousand, five hundred seventy-seven".