55165451 has 8 divisors (see below), whose sum is σ = 61461504. Its totient is φ = 49082920.

The previous prime is 55165447. The next prime is 55165471. The reversal of 55165451 is 15456155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55165451 - 2² = 55165447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55165471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52835 + ... + 53868.

It is an arithmetic number, because the mean of its divisors is an integer number (7682688).

Almost surely, 2^55165451 is an apocalyptic number.

55165451 is a deficient number, since it is larger than the sum of its proper divisors (6296053).

55165451 is a wasteful number, since it uses less digits than its factorization.

55165451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106761.

The product of its digits is 15000, while the sum is 32.

The square root of 55165451 is about 7427.3448149389. The cubic root of 55165451 is about 380.6761990566.

The spelling of 55165451 in words is "fifty-five million, one hundred sixty-five thousand, four hundred fifty-one".