51435378 has 16 divisors (see below), whose sum is σ = 114300960. Its totient is φ = 17145108.

The previous prime is 51435367. The next prime is 51435379. The reversal of 51435378 is 87353415.

51435378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51435378² = 5291196220005768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51435379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476200 + ... + 476307.

It is an arithmetic number, because the mean of its divisors is an integer number (7143810).

Almost surely, 2^51435378 is an apocalyptic number.

51435378 is an abundant number, since it is smaller than the sum of its proper divisors (62865582).

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

51435378 is a wasteful number, since it uses less digits than its factorization.

51435378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952518 (or 952512 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 51435378 is about 7171.8462058246. The cubic root of 51435378 is about 371.8952618765.

The spelling of 51435378 in words is "fifty-one million, four hundred thirty-five thousand, three hundred seventy-eight".