51145445011552 has 12 divisors (see below), whose sum is σ = 100692594866556. Its totient is φ = 25572722505760.

The previous prime is 51145445011543. The next prime is 51145445011601. The reversal of 51145445011552 is 25511054454115.

It is a super-2 number, since 2×51145445011552² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51145445011499 and 51145445011508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 799147578274 + ... + 799147578337.

It is an arithmetic number, because the mean of its divisors is an integer number (8391049572213).

Almost surely, 2^{51145445011552} is an apocalyptic number.

It is an amenable number.

51145445011552 is a deficient number, since it is larger than the sum of its proper divisors (49547149855004).

51145445011552 is a wasteful number, since it uses less digits than its factorization.

51145445011552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598295156621 (or 1598295156613 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 43.

Adding to 51145445011552 its reverse (25511054454115), we get a palindrome (76656499465667).

The spelling of 51145445011552 in words is "fifty-one trillion, one hundred forty-five billion, four hundred forty-five million, eleven thousand, five hundred fifty-two".