55475251 has 8 divisors (see below), whose sum is σ = 60214784. Its totient is φ = 50803200.

The previous prime is 55475243. The next prime is 55475261. The reversal of 55475251 is 15257455.

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 55475251 - 2³ = 55475243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55475201) 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, 15150 + ... + 18451.

It is an arithmetic number, because the mean of its divisors is an integer number (7526848).

Almost surely, 2^55475251 is an apocalyptic number.

55475251 is a deficient number, since it is larger than the sum of its proper divisors (4739533).

55475251 is a wasteful number, since it uses less digits than its factorization.

55475251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33741.

The product of its digits is 35000, while the sum is 34.

The square root of 55475251 is about 7448.1709835368. The cubic root of 55475251 is about 381.3874739916.

The spelling of 55475251 in words is "fifty-five million, four hundred seventy-five thousand, two hundred fifty-one".