51725611 has 16 divisors (see below), whose sum is σ = 62783424. Its totient is φ = 41601024.

The previous prime is 51725573. The next prime is 51725627. The reversal of 51725611 is 11652715.

It is a cyclic number.

It is not a de Polignac number, because 51725611 - 2¹⁵ = 51692843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51725611.

It is not an unprimeable number, because it can be changed into a prime (51725651) 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, 70201 + ... + 70933.

It is an arithmetic number, because the mean of its divisors is an integer number (3923964).

Almost surely, 2^51725611 is an apocalyptic number.

51725611 is a deficient number, since it is larger than the sum of its proper divisors (11057813).

51725611 is a wasteful number, since it uses less digits than its factorization.

51725611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350.

The product of its digits is 2100, while the sum is 28.

The square root of 51725611 is about 7192.0519325155. The cubic root of 51725611 is about 372.5934447188.

The spelling of 51725611 in words is "fifty-one million, seven hundred twenty-five thousand, six hundred eleven".