51335225656061 has 4 divisors (see below), whose sum is σ = 51339021811392. Its totient is φ = 51331429500732.

The previous prime is 51335225656027. The next prime is 51335225656229. The reversal of 51335225656061 is 16065652253315.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51335225656061 - 2⁶ = 51335225655997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51335225656261) 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, 1898057381 + ... + 1898084426.

It is an arithmetic number, because the mean of its divisors is an integer number (12834755452848).

Almost surely, 2^{51335225656061} is an apocalyptic number.

It is an amenable number.

51335225656061 is a deficient number, since it is larger than the sum of its proper divisors (3796155331).

51335225656061 is a wasteful number, since it uses less digits than its factorization.

51335225656061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796155330.

The product of its (nonzero) digits is 4860000, while the sum is 50.

The spelling of 51335225656061 in words is "fifty-one trillion, three hundred thirty-five billion, two hundred twenty-five million, six hundred fifty-six thousand, sixty-one".