29055557 has 2 divisors, whose sum is σ = 29055558. Its totient is φ = 29055556.

The previous prime is 29055547. The next prime is 29055569. The reversal of 29055557 is 75555092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27730756 + 1324801 = 5266^2 + 1151^2 .

It is a cyclic number.

It is not a de Polignac number, because 29055557 - 2¹⁴ = 29039173 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29055557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29055517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14527778 + 14527779.

It is an arithmetic number, because the mean of its divisors is an integer number (14527779).

Almost surely, 2^29055557 is an apocalyptic number.

It is an amenable number.

29055557 is a deficient number, since it is larger than the sum of its proper divisors (1).

29055557 is an equidigital number, since it uses as much as digits as its factorization.

29055557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78750, while the sum is 38.

The square root of 29055557 is about 5390.3206769171. The cubic root of 29055557 is about 307.4277513298.

The spelling of 29055557 in words is "twenty-nine million, fifty-five thousand, five hundred fifty-seven".