51672025 has 24 divisors (see below), whose sum is σ = 66585024. Its totient is φ = 39748800.

The previous prime is 51672011. The next prime is 51672031. The reversal of 51672025 is 52027615.

It is not a de Polignac number, because 51672025 - 2¹¹ = 51669977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51671984 and 51672002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75987 + ... + 76663.

It is an arithmetic number, because the mean of its divisors is an integer number (2774376).

Almost surely, 2^51672025 is an apocalyptic number.

It is an amenable number.

51672025 is a deficient number, since it is larger than the sum of its proper divisors (14912999).

51672025 is a wasteful number, since it uses less digits than its factorization.

51672025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 51672025 is about 7188.3256047566. The cubic root of 51672025 is about 372.4647354872.

The spelling of 51672025 in words is "fifty-one million, six hundred seventy-two thousand, twenty-five".