51430533035540 has 48 divisors (see below), whose sum is σ = 113283888415488. Its totient is φ = 19575811774464.

The previous prime is 51430533035533. The next prime is 51430533035549. The reversal of 51430533035540 is 4553033503415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51430533035549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289562792 + ... + 289740351.

It is an arithmetic number, because the mean of its divisors is an integer number (2360081008656).

Almost surely, 2^{51430533035540} is an apocalyptic number.

It is an amenable number.

51430533035540 is an abundant number, since it is smaller than the sum of its proper divisors (61853355379948).

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

51430533035540 is a wasteful number, since it uses less digits than its factorization.

51430533035540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579303368 (or 579303366 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 41.

Adding to 51430533035540 its reverse (4553033503415), we get a palindrome (55983566538955).

The spelling of 51430533035540 in words is "fifty-one trillion, four hundred thirty billion, five hundred thirty-three million, thirty-five thousand, five hundred forty".