55326031 has 4 divisors (see below), whose sum is σ = 55724200. Its totient is φ = 54927864.

The previous prime is 55326023. The next prime is 55326053. The reversal of 55326031 is 13062355.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13062355 = 5 ⋅2612471.

It is a cyclic number.

It is not a de Polignac number, because 55326031 - 2³ = 55326023 is a prime.

It is a super-2 number, since 2×55326031² = 6121939412425922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55325987 and 55326005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55326001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198876 + ... + 199153.

It is an arithmetic number, because the mean of its divisors is an integer number (13931050).

Almost surely, 2^55326031 is an apocalyptic number.

55326031 is a deficient number, since it is larger than the sum of its proper divisors (398169).

55326031 is a wasteful number, since it uses less digits than its factorization.

55326031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398168.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 55326031 is about 7438.1470138738. The cubic root of 55326031 is about 381.0452087999.

Adding to 55326031 its reverse (13062355), we get a palindrome (68388386).

The spelling of 55326031 in words is "fifty-five million, three hundred twenty-six thousand, thirty-one".