51078533 has 8 divisors (see below), whose sum is σ = 56636256. Its totient is φ = 45673200.

The previous prime is 51078529. The next prime is 51078553. The reversal of 51078533 is 33587015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51078533 - 2² = 51078529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51078533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51078553) 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, 37391 + ... + 38732.

It is an arithmetic number, because the mean of its divisors is an integer number (7079532).

Almost surely, 2^51078533 is an apocalyptic number.

It is an amenable number.

51078533 is a deficient number, since it is larger than the sum of its proper divisors (5557723).

51078533 is a wasteful number, since it uses less digits than its factorization.

51078533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76195.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 51078533 is about 7146.9247232638. The cubic root of 51078533 is about 371.0332284011.

The spelling of 51078533 in words is "fifty-one million, seventy-eight thousand, five hundred thirty-three".