55156611 has 16 divisors (see below), whose sum is σ = 75222144. Its totient is φ = 35939904.

The previous prime is 55156609. The next prime is 55156613. The reversal of 55156611 is 11665155.

It is an interprime number because it is at equal distance from previous prime (55156609) and next prime (55156613).

It is not a de Polignac number, because 55156611 - 2¹ = 55156609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55156613) 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, 26536 + ... + 28538.

It is an arithmetic number, because the mean of its divisors is an integer number (4701384).

Almost surely, 2^55156611 is an apocalyptic number.

55156611 is a deficient number, since it is larger than the sum of its proper divisors (20065533).

55156611 is a wasteful number, since it uses less digits than its factorization.

55156611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210.

The product of its digits is 4500, while the sum is 30.

The square root of 55156611 is about 7426.7496928333. The cubic root of 55156611 is about 380.6558641229.

The spelling of 55156611 in words is "fifty-five million, one hundred fifty-six thousand, six hundred eleven".