55351601 has 4 divisors (see below), whose sum is σ = 55368432. Its totient is φ = 55334772.

The previous prime is 55351591. The next prime is 55351603. The reversal of 55351601 is 10615355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55351601 - 2⁶ = 55351537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55351603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1691 + ... + 10656.

It is an arithmetic number, because the mean of its divisors is an integer number (13842108).

Almost surely, 2^55351601 is an apocalyptic number.

It is an amenable number.

55351601 is a deficient number, since it is larger than the sum of its proper divisors (16831).

55351601 is a wasteful number, since it uses less digits than its factorization.

55351601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16830.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 55351601 is about 7439.8656573893. The cubic root of 55351601 is about 381.1039022405.

Adding to 55351601 its reverse (10615355), we get a palindrome (65966956).

The spelling of 55351601 in words is "fifty-five million, three hundred fifty-one thousand, six hundred one".