53511454400 has 84 divisors (see below), whose sum is σ = 131851767792. Its totient is φ = 21375298560.

The previous prime is 53511454393. The next prime is 53511454429. The reversal of 53511454400 is 445411535.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1166294 + ... + 1211306.

Almost surely, 2^53511454400 is an apocalyptic number.

53511454400 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 53511454400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65925883896).

53511454400 is an abundant number, since it is smaller than the sum of its proper divisors (78340313392).

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

53511454400 is a wasteful number, since it uses less digits than its factorization.

53511454400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45778 (or 45763 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 53511454400 its reverse (445411535), we get a palindrome (53956865935).

The spelling of 53511454400 in words is "fifty-three billion, five hundred eleven million, four hundred fifty-four thousand, four hundred".