55554723519 has 8 divisors (see below), whose sum is σ = 74085431472. Its totient is φ = 37030248960.

The previous prime is 55554723493. The next prime is 55554723551. The reversal of 55554723519 is 91532745555.

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

It is not a de Polignac number, because 55554723519 - 2¹⁷ = 55554592447 is a prime.

It is a super-2 number, since 2×55554723519² (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 (55554725519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1537512 + ... + 1573229.

It is an arithmetic number, because the mean of its divisors is an integer number (9260678934).

Almost surely, 2^55554723519 is an apocalyptic number.

55554723519 is a deficient number, since it is larger than the sum of its proper divisors (18530707953).

55554723519 is a wasteful number, since it uses less digits than its factorization.

55554723519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116697.

The product of its digits is 4725000, while the sum is 51.

The spelling of 55554723519 in words is "fifty-five billion, five hundred fifty-four million, seven hundred twenty-three thousand, five hundred nineteen".