53103948450 has 144 divisors (see below), whose sum is σ = 157340804544. Its totient is φ = 11809929600.

The previous prime is 53103948449. The next prime is 53103948451. The reversal of 53103948450 is 5484930135.

It is an interprime number because it is at equal distance from previous prime (53103948449) and next prime (53103948451).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (53103948451) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 174315 + ... + 369585.

It is an arithmetic number, because the mean of its divisors is an integer number (1092644476).

Almost surely, 2^53103948450 is an apocalyptic number.

53103948450 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 53103948450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78670402272).

53103948450 is an abundant number, since it is smaller than the sum of its proper divisors (104236856094).

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

53103948450 is a wasteful number, since it uses less digits than its factorization.

53103948450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195337 (or 195325 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 53103948450 in words is "fifty-three billion, one hundred three million, nine hundred forty-eight thousand, four hundred fifty".