51255249093552 has 320 divisors, whose sum is σ = 162786145019904. Its totient is φ = 13578938081280.

The previous prime is 51255249093533. The next prime is 51255249093613. The reversal of 51255249093552 is 25539094255215.

It is a junction number, because it is equal to n+sod(n) for n = 51255249093492 and 51255249093501.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49229958 + ... + 50260314.

Almost surely, 2^{51255249093552} 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 51255249093552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81393072509952).

51255249093552 is an abundant number, since it is smaller than the sum of its proper divisors (111530895926352).

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

51255249093552 is a wasteful number, since it uses less digits than its factorization.

51255249093552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030596 (or 1030590 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 57.

The spelling of 51255249093552 in words is "fifty-one trillion, two hundred fifty-five billion, two hundred forty-nine million, ninety-three thousand, five hundred fifty-two".