55451051 has 4 divisors (see below), whose sum is σ = 55575000. Its totient is φ = 55327104.

The previous prime is 55451047. The next prime is 55451057. The reversal of 55451051 is 15015455.

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 55451051 - 2² = 55451047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55451051.

It is not an unprimeable number, because it can be changed into a prime (55451057) 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, 61301 + ... + 62198.

It is an arithmetic number, because the mean of its divisors is an integer number (13893750).

Almost surely, 2^55451051 is an apocalyptic number.

55451051 is a deficient number, since it is larger than the sum of its proper divisors (123949).

55451051 is a wasteful number, since it uses less digits than its factorization.

55451051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123948.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 55451051 is about 7446.5462464152. The cubic root of 55451051 is about 381.3320083013.

The spelling of 55451051 in words is "fifty-five million, four hundred fifty-one thousand, fifty-one".