2551016236 has 6 divisors (see below), whose sum is σ = 4464278420. Its totient is φ = 1275508116.

The previous prime is 2551016213. The next prime is 2551016249. The reversal of 2551016236 is 6326101552.

It is a junction number, because it is equal to n+sod(n) for n = 2551016198 and 2551016207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318877026 + ... + 318877033.

Almost surely, 2^2551016236 is an apocalyptic number.

It is an amenable number.

2551016236 is a deficient number, since it is larger than the sum of its proper divisors (1913262184).

2551016236 is a wasteful number, since it uses less digits than its factorization.

2551016236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637754063 (or 637754061 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2551016236 is about 50507.5859252845. The cubic root of 2551016236 is about 1366.3786713665.

Adding to 2551016236 its reverse (6326101552), we get a palindrome (8877117788).

The spelling of 2551016236 in words is "two billion, five hundred fifty-one million, sixteen thousand, two hundred thirty-six".