55125929 has 4 divisors (see below), whose sum is σ = 55271760. Its totient is φ = 54980100.

The previous prime is 55125913. The next prime is 55125937. The reversal of 55125929 is 92952155.

55125929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92952155 = 5 ⋅18590431.

It is a cyclic number.

It is not a de Polignac number, because 55125929 - 2⁴ = 55125913 is a prime.

It is a super-2 number, since 2×55125929² = 6077736096226082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55125892 and 55125901.

It is not an unprimeable number, because it can be changed into a prime (55125229) 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 3 ways as a sum of consecutive naturals, for example, 72347 + ... + 73104.

It is an arithmetic number, because the mean of its divisors is an integer number (13817940).

Almost surely, 2^55125929 is an apocalyptic number.

It is an amenable number.

55125929 is a deficient number, since it is larger than the sum of its proper divisors (145831).

55125929 is a wasteful number, since it uses less digits than its factorization.

55125929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145830.

The product of its digits is 40500, while the sum is 38.

The square root of 55125929 is about 7424.6837643094. The cubic root of 55125929 is about 380.5852684784.

The spelling of 55125929 in words is "fifty-five million, one hundred twenty-five thousand, nine hundred twenty-nine".