55487401 has 8 divisors (see below), whose sum is σ = 56772864. Its totient is φ = 54206400.

The previous prime is 55487381. The next prime is 55487413. The reversal of 55487401 is 10478455.

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 55487401 - 2⁷ = 55487273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55487441) 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, 45601 + ... + 46801.

It is an arithmetic number, because the mean of its divisors is an integer number (7096608).

Almost surely, 2^55487401 is an apocalyptic number.

It is an amenable number.

55487401 is a deficient number, since it is larger than the sum of its proper divisors (1285463).

55487401 is a wasteful number, since it uses less digits than its factorization.

55487401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 55487401 is about 7448.9865753671. The cubic root of 55487401 is about 381.4153153531.

The spelling of 55487401 in words is "fifty-five million, four hundred eighty-seven thousand, four hundred one".