55625011 has 4 divisors (see below), whose sum is σ = 59903872. Its totient is φ = 51346152.

The previous prime is 55624999. The next prime is 55625029. The reversal of 55625011 is 11052655.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55625011 - 2⁵ = 55624979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55635011) 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, 2139411 + ... + 2139436.

It is an arithmetic number, because the mean of its divisors is an integer number (14975968).

Almost surely, 2^55625011 is an apocalyptic number.

55625011 is a deficient number, since it is larger than the sum of its proper divisors (4278861).

55625011 is a wasteful number, since it uses less digits than its factorization.

55625011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278860.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 55625011 is about 7458.2176825298. The cubic root of 55625011 is about 381.7303612374.

Adding to 55625011 its reverse (11052655), we get a palindrome (66677666).

The spelling of 55625011 in words is "fifty-five million, six hundred twenty-five thousand, eleven".