55553031 has 6 divisors (see below), whose sum is σ = 80243280. Its totient is φ = 37035348.

The previous prime is 55552993. The next prime is 55553053. The reversal of 55553031 is 13035555.

It is not a de Polignac number, because 55553031 - 2¹⁴ = 55536647 is a prime.

It is a super-3 number, since 3×55553031³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 55552986 and 55553004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55553081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3086271 + ... + 3086288.

It is an arithmetic number, because the mean of its divisors is an integer number (13373880).

Almost surely, 2^55553031 is an apocalyptic number.

55553031 is a deficient number, since it is larger than the sum of its proper divisors (24690249).

55553031 is a wasteful number, since it uses less digits than its factorization.

55553031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172565 (or 6172562 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 55553031 is about 7453.3905707403. The cubic root of 55553031 is about 381.5656343075.

Adding to 55553031 its reverse (13035555), we get a palindrome (68588586).

The spelling of 55553031 in words is "fifty-five million, five hundred fifty-three thousand, thirty-one".