55659451 has 4 divisors (see below), whose sum is σ = 55732600. Its totient is φ = 55586304.

The previous prime is 55659437. The next prime is 55659521. The reversal of 55659451 is 15495655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55659451 - 2⁵ = 55659419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55659431) 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, 35421 + ... + 36958.

It is an arithmetic number, because the mean of its divisors is an integer number (13933150).

Almost surely, 2^55659451 is an apocalyptic number.

55659451 is a deficient number, since it is larger than the sum of its proper divisors (73149).

55659451 is an equidigital number, since it uses as much as digits as its factorization.

55659451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73148.

The product of its digits is 135000, while the sum is 40.

The square root of 55659451 is about 7460.5261878771. The cubic root of 55659451 is about 381.8091272521.

The spelling of 55659451 in words is "fifty-five million, six hundred fifty-nine thousand, four hundred fifty-one".