55695505 has 4 divisors (see below), whose sum is σ = 66834612. Its totient is φ = 44556400.

The previous prime is 55695503. The next prime is 55695509. The reversal of 55695505 is 50559655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50559655 = 5 ⋅10111931.

It can be written as a sum of positive squares in 2 ways, for example, as 7795264 + 47900241 = 2792^2 + 6921^2 .

It is not a de Polignac number, because 55695505 - 2¹ = 55695503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55695503) 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, 5569546 + ... + 5569555.

It is an arithmetic number, because the mean of its divisors is an integer number (16708653).

Almost surely, 2^55695505 is an apocalyptic number.

It is an amenable number.

55695505 is a deficient number, since it is larger than the sum of its proper divisors (11139107).

55695505 is a wasteful number, since it uses less digits than its factorization.

55695505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11139106.

The product of its (nonzero) digits is 168750, while the sum is 40.

The square root of 55695505 is about 7462.9421142067. The cubic root of 55695505 is about 381.8915497625.

The spelling of 55695505 in words is "fifty-five million, six hundred ninety-five thousand, five hundred five".