51124143450 has 48 divisors (see below), whose sum is σ = 127318458240. Its totient is φ = 13576053120.

The previous prime is 51124143449. The next prime is 51124143479. The reversal of 51124143450 is 5434142115.

It is a super-2 number, since 2×51124143450² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 677179 + ... + 748878.

It is an arithmetic number, because the mean of its divisors is an integer number (2652467880).

Almost surely, 2^51124143450 is an apocalyptic number.

51124143450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51124143450 is an abundant number, since it is smaller than the sum of its proper divisors (76194314790).

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

51124143450 is a wasteful number, since it uses less digits than its factorization.

51124143450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426311 (or 1426306 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 51124143450 its reverse (5434142115), we get a palindrome (56558285565).

The spelling of 51124143450 in words is "fifty-one billion, one hundred twenty-four million, one hundred forty-three thousand, four hundred fifty".