55029031 has 2 divisors, whose sum is σ = 55029032. Its totient is φ = 55029030.

The previous prime is 55029019. The next prime is 55029049. The reversal of 55029031 is 13092055.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55029031 is a prime.

It is a super-2 number, since 2×55029031² = 6056388505597922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55028987 and 55029005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55029001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27514515 + 27514516.

It is an arithmetic number, because the mean of its divisors is an integer number (27514516).

Almost surely, 2^55029031 is an apocalyptic number.

55029031 is the 3318-th centered decagonal number.

55029031 is a deficient number, since it is larger than the sum of its proper divisors (1).

55029031 is an equidigital number, since it uses as much as digits as its factorization.

55029031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 55029031 is about 7418.1554985050. The cubic root of 55029031 is about 380.3621455268.

The spelling of 55029031 in words is "fifty-five million, twenty-nine thousand, thirty-one".