55102969 has 2 divisors, whose sum is σ = 55102970. Its totient is φ = 55102968.

The previous prime is 55102961. The next prime is 55102973. The reversal of 55102969 is 96920155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49280400 + 5822569 = 7020^2 + 2413^2 .

It is a cyclic number.

It is not a de Polignac number, because 55102969 - 2³ = 55102961 is a prime.

It is a super-2 number, since 2×55102969² = 6072674385229922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55102961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27551484 + 27551485.

It is an arithmetic number, because the mean of its divisors is an integer number (27551485).

Almost surely, 2^55102969 is an apocalyptic number.

It is an amenable number.

55102969 is a deficient number, since it is larger than the sum of its proper divisors (1).

55102969 is an equidigital number, since it uses as much as digits as its factorization.

55102969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 55102969 is about 7423.1374094786. The cubic root of 55102969 is about 380.5324231032.

It can be divided in two parts, 55 and 102969, that multiplied together give a triangular number (5663295 = T₃₃₆₅).

The spelling of 55102969 in words is "fifty-five million, one hundred two thousand, nine hundred sixty-nine".