55174752478 has 8 divisors (see below), whose sum is σ = 83581556040. Its totient is φ = 27314233800.

The previous prime is 55174752473. The next prime is 55174752487. The reversal of 55174752478 is 87425747155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55174752478² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55174752473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136570968 + ... + 136571371.

It is an arithmetic number, because the mean of its divisors is an integer number (10447694505).

Almost surely, 2^55174752478 is an apocalyptic number.

55174752478 is a deficient number, since it is larger than the sum of its proper divisors (28406803562).

55174752478 is a wasteful number, since it uses less digits than its factorization.

55174752478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273142442.

The product of its digits is 10976000, while the sum is 55.

The spelling of 55174752478 in words is "fifty-five billion, one hundred seventy-four million, seven hundred fifty-two thousand, four hundred seventy-eight".