55252631 has 8 divisors (see below), whose sum is σ = 63192864. Its totient is φ = 47324160.

The previous prime is 55252621. The next prime is 55252643. The reversal of 55252631 is 13625255.

It is a happy number.

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 55252631 - 2¹⁸ = 54990487 is a prime.

It is a super-2 number, since 2×55252631² = 6105706464844322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55252594 and 55252603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55252621) 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, 12671 + ... + 16463.

It is an arithmetic number, because the mean of its divisors is an integer number (7899108).

Almost surely, 2^55252631 is an apocalyptic number.

55252631 is a deficient number, since it is larger than the sum of its proper divisors (7940233).

55252631 is a wasteful number, since it uses less digits than its factorization.

55252631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881.

The product of its digits is 9000, while the sum is 29.

The square root of 55252631 is about 7433.2113517645. The cubic root of 55252631 is about 380.8766257329.

Adding to 55252631 its reverse (13625255), we get a palindrome (68877886).

The spelling of 55252631 in words is "fifty-five million, two hundred fifty-two thousand, six hundred thirty-one".