51255647152 has 10 divisors (see below), whose sum is σ = 99307816388. Its totient is φ = 25627823568.

The previous prime is 51255647143. The next prime is 51255647167. The reversal of 51255647152 is 25174655215.

It is a super-2 number, since 2×51255647152² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51255647099 and 51255647108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601738958 + ... + 1601738989.

Almost surely, 2^51255647152 is an apocalyptic number.

It is an amenable number.

51255647152 is a deficient number, since it is larger than the sum of its proper divisors (48052169236).

51255647152 is a wasteful number, since it uses less digits than its factorization.

51255647152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203477955 (or 3203477949 counting only the distinct ones).

The product of its digits is 420000, while the sum is 43.

The spelling of 51255647152 in words is "fifty-one billion, two hundred fifty-five million, six hundred forty-seven thousand, one hundred fifty-two".