55351207 has 8 divisors (see below), whose sum is σ = 56455056. Its totient is φ = 54258432.

The previous prime is 55351171. The next prime is 55351229. The reversal of 55351207 is 70215355.

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 55351207 - 2¹¹ = 55349159 is a prime.

It is a super-2 number, since 2×55351207² = 6127512232713698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55351267) 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, 7713 + ... + 13045.

It is an arithmetic number, because the mean of its divisors is an integer number (7056882).

Almost surely, 2^55351207 is an apocalyptic number.

55351207 is a deficient number, since it is larger than the sum of its proper divisors (1103849).

55351207 is a wasteful number, since it uses less digits than its factorization.

55351207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 55351207 is about 7439.8391783694. The cubic root of 55351207 is about 381.1029979891.

The spelling of 55351207 in words is "fifty-five million, three hundred fifty-one thousand, two hundred seven".