5251611023040 has 224 divisors, whose sum is σ = 17554362981120. Its totient is φ = 1326501605376.

The previous prime is 5251611023017. The next prime is 5251611023063. The reversal of 5251611023040 is 403201161525.

It is an interprime number because it is at equal distance from previous prime (5251611023017) and next prime (5251611023063).

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

It is a junction number, because it is equal to n+sod(n) for n = 5251611022989 and 5251611023007.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128151994 + ... + 128192966.

It is an arithmetic number, because the mean of its divisors is an integer number (78367691880).

Almost surely, 2^{5251611023040} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5251611023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8777181490560).

5251611023040 is an abundant number, since it is smaller than the sum of its proper divisors (12302751958080).

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

5251611023040 is a wasteful number, since it uses less digits than its factorization.

5251611023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48039 (or 48029 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 5251611023040 its reverse (403201161525), we get a palindrome (5654812184565).

The spelling of 5251611023040 in words is "five trillion, two hundred fifty-one billion, six hundred eleven million, twenty-three thousand, forty".