55202631 has 32 divisors (see below), whose sum is σ = 85363200. Its totient is φ = 31409280.

The previous prime is 55202597. The next prime is 55202633. The reversal of 55202631 is 13620255.

55202631 = T₅₄ + T₅₅ + ... + T₆₉₁.

55202631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55202631 - 2¹⁴ = 55186247 is a prime.

It is a super-2 number, since 2×55202631² = 6094660938644322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55202633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34630 + ... + 36188.

It is an arithmetic number, because the mean of its divisors is an integer number (2667600).

Almost surely, 2^55202631 is an apocalyptic number.

55202631 is a deficient number, since it is larger than the sum of its proper divisors (30160569).

55202631 is a wasteful number, since it uses less digits than its factorization.

55202631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 55202631 is about 7429.8473066410. The cubic root of 55202631 is about 380.7617016210.

Adding to 55202631 its reverse (13620255), we get a palindrome (68822886).

The spelling of 55202631 in words is "fifty-five million, two hundred two thousand, six hundred thirty-one".