55869529 has 2 divisors, whose sum is σ = 55869530. Its totient is φ = 55869528.

The previous prime is 55869523. The next prime is 55869571. The reversal of 55869529 is 92596855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31663129 + 24206400 = 5627^2 + 4920^2 .

It is a cyclic number.

It is not a de Polignac number, because 55869529 - 2¹⁵ = 55836761 is a prime.

It is not a weakly prime, because it can be changed into another prime (55869523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27934764 + 27934765.

It is an arithmetic number, because the mean of its divisors is an integer number (27934765).

Almost surely, 2^55869529 is an apocalyptic number.

It is an amenable number.

55869529 is a deficient number, since it is larger than the sum of its proper divisors (1).

55869529 is an equidigital number, since it uses as much as digits as its factorization.

55869529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972000, while the sum is 49.

The square root of 55869529 is about 7474.5922296805. The cubic root of 55869529 is about 382.2888840255.

The spelling of 55869529 in words is "fifty-five million, eight hundred sixty-nine thousand, five hundred twenty-nine".