55069311 has 16 divisors (see below), whose sum is σ = 80529408. Its totient is φ = 33196800.

The previous prime is 55069309. The next prime is 55069321. The reversal of 55069311 is 11396055.

It is not a de Polignac number, because 55069311 - 2¹ = 55069309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55069321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1935 + ... + 10671.

It is an arithmetic number, because the mean of its divisors is an integer number (5033088).

Almost surely, 2^55069311 is an apocalyptic number.

55069311 is a deficient number, since it is larger than the sum of its proper divisors (25460097).

55069311 is a wasteful number, since it uses less digits than its factorization.

55069311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8942.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 55069311 is about 7420.8699624774. The cubic root of 55069311 is about 380.4549283741.

The spelling of 55069311 in words is "fifty-five million, sixty-nine thousand, three hundred eleven".