53075357550 has 72 divisors (see below), whose sum is σ = 143046007416. Its totient is φ = 14108742720.

The previous prime is 53075357521. The next prime is 53075357581. The reversal of 53075357550 is 5575357035.

53075357550 is a `hidden beast` number, since 5 + 3 + 0 + 75 + 3 + 575 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 53075357496 and 53075357505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43384 + ... + 328683.

It is an arithmetic number, because the mean of its divisors is an integer number (1986750103).

Almost surely, 2^53075357550 is an apocalyptic number.

53075357550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53075357550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71523003708).

53075357550 is an abundant number, since it is smaller than the sum of its proper divisors (89970649866).

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

53075357550 is a wasteful number, since it uses less digits than its factorization.

53075357550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372402 (or 372394 counting only the distinct ones).

The product of its (nonzero) digits is 1378125, while the sum is 45.

The spelling of 53075357550 in words is "fifty-three billion, seventy-five million, three hundred fifty-seven thousand, five hundred fifty".