51423078 has 32 divisors (see below), whose sum is σ = 122651136. Its totient is φ = 14053248.

The previous prime is 51423067. The next prime is 51423109. The reversal of 51423078 is 87032415.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25651 + ... + 27582.

It is an arithmetic number, because the mean of its divisors is an integer number (3832848).

Almost surely, 2^51423078 is an apocalyptic number.

51423078 is an abundant number, since it is smaller than the sum of its proper divisors (71228058).

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

51423078 is a wasteful number, since it uses less digits than its factorization.

51423078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53268.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 51423078 is about 7170.9886347700. The cubic root of 51423078 is about 371.8656151199.

The spelling of 51423078 in words is "fifty-one million, four hundred twenty-three thousand, seventy-eight".