51132420224 has 32 divisors (see below), whose sum is σ = 101902222800. Its totient is φ = 25556960512.

The previous prime is 51132420221. The next prime is 51132420239. The reversal of 51132420224 is 42202423115.

51132420224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×51132420224² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51132420193 and 51132420202.

It is not an unprimeable number, because it can be changed into a prime (51132420221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289979 + ... + 431685.

Almost surely, 2^51132420224 is an apocalyptic number.

It is an amenable number.

51132420224 is a deficient number, since it is larger than the sum of its proper divisors (50769802576).

51132420224 is a wasteful number, since it uses less digits than its factorization.

51132420224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144540 (or 144528 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 51132420224 its reverse (42202423115), we get a palindrome (93334843339).

The spelling of 51132420224 in words is "fifty-one billion, one hundred thirty-two million, four hundred twenty thousand, two hundred twenty-four".