51015652 has 12 divisors (see below), whose sum is σ = 89869696. Its totient is φ = 25338600.

The previous prime is 51015647. The next prime is 51015659. The reversal of 51015652 is 25651015.

It is not an unprimeable number, because it can be changed into a prime (51015659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41628 + ... + 42835.

Almost surely, 2^51015652 is an apocalyptic number.

It is an amenable number.

51015652 is a deficient number, since it is larger than the sum of its proper divisors (38854044).

51015652 is a wasteful number, since it uses less digits than its factorization.

51015652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84618 (or 84616 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 51015652 is about 7142.5242036692. The cubic root of 51015652 is about 370.8809105252.

Adding to 51015652 its reverse (25651015), we get a palindrome (76666667).

The spelling of 51015652 in words is "fifty-one million, fifteen thousand, six hundred fifty-two".