55351069 has 2 divisors, whose sum is σ = 55351070. Its totient is φ = 55351068.

The previous prime is 55351039. The next prime is 55351073. The reversal of 55351069 is 96015355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55323844 + 27225 = 7438^2 + 165^2 .

It is a cyclic number.

It is not a de Polignac number, because 55351069 - 2⁷ = 55350941 is a prime.

It is a super-2 number, since 2×55351069² = 6127481678885522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55351039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27675534 + 27675535.

It is an arithmetic number, because the mean of its divisors is an integer number (27675535).

Almost surely, 2^55351069 is an apocalyptic number.

It is an amenable number.

55351069 is a deficient number, since it is larger than the sum of its proper divisors (1).

55351069 is an equidigital number, since it uses as much as digits as its factorization.

55351069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 55351069 is about 7439.8299039696. The cubic root of 55351069 is about 381.1026812706.

The spelling of 55351069 in words is "fifty-five million, three hundred fifty-one thousand, sixty-nine".