55066131 has 12 divisors (see below), whose sum is σ = 79630408. Its totient is φ = 36669024.

The previous prime is 55066129. The next prime is 55066133. The reversal of 55066131 is 13166055.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55066129) and next prime (55066133).

It is not a de Polignac number, because 55066131 - 2¹ = 55066129 is a prime.

It is a super-2 number, since 2×55066131² = 6064557566618322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55066095 and 55066104.

It is not an unprimeable number, because it can be changed into a prime (55066133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6336 + ... + 12258.

Almost surely, 2^55066131 is an apocalyptic number.

55066131 is a deficient number, since it is larger than the sum of its proper divisors (24564277).

55066131 is a wasteful number, since it uses less digits than its factorization.

55066131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6962 (or 6959 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 55066131 is about 7420.6556987910. The cubic root of 55066131 is about 380.4476050577.

The spelling of 55066131 in words is "fifty-five million, sixty-six thousand, one hundred thirty-one".