55257519360 has 144 divisors (see below), whose sum is σ = 178897126464. Its totient is φ = 14533410816.

The previous prime is 55257519341. The next prime is 55257519379. The reversal of 55257519360 is 6391575255.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55257519341) and next prime (55257519379).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181759 + ... + 378881.

It is an arithmetic number, because the mean of its divisors is an integer number (1242341156).

Almost surely, 2^55257519360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55257519360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89448563232).

55257519360 is an abundant number, since it is smaller than the sum of its proper divisors (123639607104).

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

55257519360 is a wasteful number, since it uses less digits than its factorization.

55257519360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197220 (or 197206 counting only the distinct ones).

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

The spelling of 55257519360 in words is "fifty-five billion, two hundred fifty-seven million, five hundred nineteen thousand, three hundred sixty".