55151601 has 8 divisors (see below), whose sum is σ = 75329184. Its totient is φ = 35870880.

The previous prime is 55151599. The next prime is 55151627. The reversal of 55151601 is 10615155.

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

It is not a de Polignac number, because 55151601 - 2¹ = 55151599 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55151501) 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, 224071 + ... + 224316.

It is an arithmetic number, because the mean of its divisors is an integer number (9416148).

Almost surely, 2^55151601 is an apocalyptic number.

It is an amenable number.

55151601 is a deficient number, since it is larger than the sum of its proper divisors (20177583).

55151601 is a wasteful number, since it uses less digits than its factorization.

55151601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448431.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 55151601 is about 7426.4123909193. The cubic root of 55151601 is about 380.6443384956.

Adding to 55151601 its reverse (10615155), we get a palindrome (65766756).

The spelling of 55151601 in words is "fifty-five million, one hundred fifty-one thousand, six hundred one".