51653425 has 6 divisors (see below), whose sum is σ = 64050278. Its totient is φ = 41322720.

The previous prime is 51653417. The next prime is 51653447. The reversal of 51653425 is 52435615.

It can be written as a sum of positive squares in 3 ways, for example, as 944784 + 50708641 = 972^2 + 7121^2 .

It is not a de Polignac number, because 51653425 - 2³ = 51653417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1033044 + ... + 1033093.

Almost surely, 2^51653425 is an apocalyptic number.

It is an amenable number.

51653425 is a deficient number, since it is larger than the sum of its proper divisors (12396853).

51653425 is a wasteful number, since it uses less digits than its factorization.

51653425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066147 (or 2066142 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 51653425 is about 7187.0317238760. The cubic root of 51653425 is about 372.4200389904.

The spelling of 51653425 in words is "fifty-one million, six hundred fifty-three thousand, four hundred twenty-five".