51903426 has 16 divisors (see below), whose sum is σ = 105357024. Its totient is φ = 17042784.

The previous prime is 51903413. The next prime is 51903427. The reversal of 51903426 is 62430915.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51903393 and 51903402.

It is not an unprimeable number, because it can be changed into a prime (51903427) 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, 64155 + ... + 64958.

It is an arithmetic number, because the mean of its divisors is an integer number (6584814).

Almost surely, 2^51903426 is an apocalyptic number.

51903426 is an abundant number, since it is smaller than the sum of its proper divisors (53453598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51903426 is a wasteful number, since it uses less digits than its factorization.

51903426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129185.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 51903426 is about 7204.4032369100. The cubic root of 51903426 is about 373.0199061221.

The spelling of 51903426 in words is "fifty-one million, nine hundred three thousand, four hundred twenty-six".