55042451 has 8 divisors (see below), whose sum is σ = 56465904. Its totient is φ = 53625600.

The previous prime is 55042441. The next prime is 55042483. The reversal of 55042451 is 15424055.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55042451 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 55042451.

It is not an unprimeable number, because it can be changed into a prime (55042441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18251 + ... + 21051.

It is an arithmetic number, because the mean of its divisors is an integer number (7058238).

Almost surely, 2^55042451 is an apocalyptic number.

55042451 is a deficient number, since it is larger than the sum of its proper divisors (1423453).

55042451 is a wasteful number, since it uses less digits than its factorization.

55042451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 55042451 is about 7419.0599808871. The cubic root of 55042451 is about 380.3930628142.

The spelling of 55042451 in words is "fifty-five million, forty-two thousand, four hundred fifty-one".