53775330531400 has 96 divisors (see below), whose sum is σ = 126311533848000. Its totient is φ = 21290268153600.

The previous prime is 53775330531371. The next prime is 53775330531409. The reversal of 53775330531400 is 413503357735.

It is a happy number.

It is a super-2 number, since 2×53775330531400² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53775330531409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5245165 + ... + 11621635.

It is an arithmetic number, because the mean of its divisors is an integer number (1315745144250).

Almost surely, 2^{53775330531400} is an apocalyptic number.

53775330531400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53775330531400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63155766924000).

53775330531400 is an abundant number, since it is smaller than the sum of its proper divisors (72536203316600).

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

53775330531400 is a wasteful number, since it uses less digits than its factorization.

53775330531400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6376919 (or 6376910 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 46.

The spelling of 53775330531400 in words is "fifty-three trillion, seven hundred seventy-five billion, three hundred thirty million, five hundred thirty-one thousand, four hundred".