51422025 has 48 divisors (see below), whose sum is σ = 92994048. Its totient is φ = 24960000.

The previous prime is 51422011. The next prime is 51422047. The reversal of 51422025 is 52022415.

It is a happy number.

It is not a de Polignac number, because 51422025 - 2¹⁰ = 51421001 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51421992 and 51422010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38875 + ... + 40175.

It is an arithmetic number, because the mean of its divisors is an integer number (1937376).

Almost surely, 2^51422025 is an apocalyptic number.

It is an amenable number.

51422025 is a deficient number, since it is larger than the sum of its proper divisors (41572023).

51422025 is a wasteful number, since it uses less digits than its factorization.

51422025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362 (or 1357 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 51422025 is about 7170.9152135554. The cubic root of 51422025 is about 371.8630768486.

The spelling of 51422025 in words is "fifty-one million, four hundred twenty-two thousand, twenty-five".