51430126 has 16 divisors (see below), whose sum is σ = 85950720. Its totient is φ = 22879480.

The previous prime is 51430121. The next prime is 51430129. The reversal of 51430126 is 62103415.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 51430097 and 51430106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51430121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23836 + ... + 25903.

It is an arithmetic number, because the mean of its divisors is an integer number (5371920).

Almost surely, 2^51430126 is an apocalyptic number.

51430126 is a deficient number, since it is larger than the sum of its proper divisors (34520594).

51430126 is a wasteful number, since it uses less digits than its factorization.

51430126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49799.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 51430126 is about 7171.4800425017. The cubic root of 51430126 is about 371.8826035307.

Subtracting 51430126 from its reverse (62103415), we obtain a square (10673289 = 3267²).

The spelling of 51430126 in words is "fifty-one million, four hundred thirty thousand, one hundred twenty-six".