55631005 has 8 divisors (see below), whose sum is σ = 66820824. Its totient is φ = 44462400.

The previous prime is 55631003. The next prime is 55631039. The reversal of 55631005 is 50013655.

It can be written as a sum of positive squares in 4 ways, for example, as 11819844 + 43811161 = 3438^2 + 6619^2 .

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

It is not a de Polignac number, because 55631005 - 2¹ = 55631003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55631003) 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, 1195 + ... + 10615.

It is an arithmetic number, because the mean of its divisors is an integer number (8352603).

Almost surely, 2^55631005 is an apocalyptic number.

It is an amenable number.

55631005 is a deficient number, since it is larger than the sum of its proper divisors (11189819).

55631005 is a wasteful number, since it uses less digits than its factorization.

55631005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10607.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 55631005 is about 7458.6195103384. The cubic root of 55631005 is about 381.7440721536.

The spelling of 55631005 in words is "fifty-five million, six hundred thirty-one thousand, five".