55500525278 has 8 divisors (see below), whose sum is σ = 90819041400. Its totient is φ = 25227511480.

The previous prime is 55500525259. The next prime is 55500525307. The reversal of 55500525278 is 87252500555.

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

It is a super-2 number, since 2×55500525278² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261375553 + ... + 1261375596.

It is an arithmetic number, because the mean of its divisors is an integer number (11352380175).

Almost surely, 2^55500525278 is an apocalyptic number.

55500525278 is a deficient number, since it is larger than the sum of its proper divisors (35318516122).

55500525278 is a wasteful number, since it uses less digits than its factorization.

55500525278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522751162.

The product of its (nonzero) digits is 700000, while the sum is 44.

The spelling of 55500525278 in words is "fifty-five billion, five hundred million, five hundred twenty-five thousand, two hundred seventy-eight".