55147111075 has 48 divisors (see below), whose sum is σ = 79203430656. Its totient is φ = 37307376000.

The previous prime is 55147111073. The next prime is 55147111081. The reversal of 55147111075 is 57011174155.

It is a happy number.

It is not a de Polignac number, because 55147111075 - 2¹ = 55147111073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55147111073) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12387600 + ... + 12392050.

It is an arithmetic number, because the mean of its divisors is an integer number (1650071472).

Almost surely, 2^55147111075 is an apocalyptic number.

55147111075 is a deficient number, since it is larger than the sum of its proper divisors (24056319581).

55147111075 is a wasteful number, since it uses less digits than its factorization.

55147111075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404 (or 5399 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 37.

The spelling of 55147111075 in words is "fifty-five billion, one hundred forty-seven million, one hundred eleven thousand, seventy-five".