55200631 has 2 divisors, whose sum is σ = 55200632. Its totient is φ = 55200630.

The previous prime is 55200599. The next prime is 55200661. The reversal of 55200631 is 13600255.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55200631 - 2⁵ = 55200599 is a prime.

It is a super-2 number, since 2×55200631² = 6094219325596322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55200661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27600315 + 27600316.

It is an arithmetic number, because the mean of its divisors is an integer number (27600316).

Almost surely, 2^55200631 is an apocalyptic number.

55200631 is a deficient number, since it is larger than the sum of its proper divisors (1).

55200631 is an equidigital number, since it uses as much as digits as its factorization.

55200631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 55200631 is about 7429.7127131539. The cubic root of 55200631 is about 380.7571032133.

Adding to 55200631 its reverse (13600255), we get a palindrome (68800886).

The spelling of 55200631 in words is "fifty-five million, two hundred thousand, six hundred thirty-one".