51270515601 has 16 divisors (see below), whose sum is σ = 69740585280. Its totient is φ = 33497192960.

The previous prime is 51270515531. The next prime is 51270515617. The reversal of 51270515601 is 10651507215.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51270515601 - 2⁷ = 51270515473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51270515671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 819495 + ... + 879836.

It is an arithmetic number, because the mean of its divisors is an integer number (4358786580).

Almost surely, 2^51270515601 is an apocalyptic number.

It is an amenable number.

51270515601 is a deficient number, since it is larger than the sum of its proper divisors (18470069679).

51270515601 is a wasteful number, since it uses less digits than its factorization.

51270515601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699536.

The product of its (nonzero) digits is 10500, while the sum is 33.

The spelling of 51270515601 in words is "fifty-one billion, two hundred seventy million, five hundred fifteen thousand, six hundred one".