55992031 has 8 divisors (see below), whose sum is σ = 59094000. Its totient is φ = 52905600.

The previous prime is 55992029. The next prime is 55992059. The reversal of 55992031 is 13029955.

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 55992031 - 2¹ = 55992029 is a prime.

It is a super-2 number, since 2×55992031² = 6270215071009922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55992061) 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, 3945 + ... + 11293.

It is an arithmetic number, because the mean of its divisors is an integer number (7386750).

Almost surely, 2^55992031 is an apocalyptic number.

55992031 is a deficient number, since it is larger than the sum of its proper divisors (3101969).

55992031 is a wasteful number, since it uses less digits than its factorization.

55992031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7769.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 55992031 is about 7482.7823033949. The cubic root of 55992031 is about 382.5680878976.

The spelling of 55992031 in words is "fifty-five million, nine hundred ninety-two thousand, thirty-one".