55169205375 has 64 divisors (see below), whose sum is σ = 99572893056. Its totient is φ = 27017216000.

The previous prime is 55169205373. The next prime is 55169205401. The reversal of 55169205375 is 57350296155.

It is a happy number.

It is not a de Polignac number, because 55169205375 - 2¹ = 55169205373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55169205373) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 155839 + ... + 366911.

It is an arithmetic number, because the mean of its divisors is an integer number (1555826454).

Almost surely, 2^55169205375 is an apocalyptic number.

55169205375 is a deficient number, since it is larger than the sum of its proper divisors (44403687681).

55169205375 is a wasteful number, since it uses less digits than its factorization.

55169205375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211149 (or 211139 counting only the distinct ones).

The product of its (nonzero) digits is 1417500, while the sum is 48.

The spelling of 55169205375 in words is "fifty-five billion, one hundred sixty-nine million, two hundred five thousand, three hundred seventy-five".