55299706520 has 32 divisors (see below), whose sum is σ = 125404070400. Its totient is φ = 21945708288.

The previous prime is 55299706439. The next prime is 55299706529. The reversal of 55299706520 is 2560799255.

It is a super-3 number, since 3×55299706520³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55299706529) 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, 5437805 + ... + 5447964.

It is an arithmetic number, because the mean of its divisors is an integer number (3918877200).

Almost surely, 2^55299706520 is an apocalyptic number.

It is an amenable number.

55299706520 is an abundant number, since it is smaller than the sum of its proper divisors (70104363880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55299706520 is a wasteful number, since it uses less digits than its factorization.

55299706520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10885907 (or 10885903 counting only the distinct ones).

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 55299706520 in words is "fifty-five billion, two hundred ninety-nine million, seven hundred six thousand, five hundred twenty".