52778461 has 8 divisors (see below), whose sum is σ = 54722304. Its totient is φ = 50849760.

The previous prime is 52778443. The next prime is 52778471. The reversal of 52778461 is 16487725.

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 52778461 - 2¹³ = 52770269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52778431) 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, 3570 + ... + 10876.

It is an arithmetic number, because the mean of its divisors is an integer number (6840288).

Almost surely, 2^52778461 is an apocalyptic number.

It is an amenable number.

52778461 is a deficient number, since it is larger than the sum of its proper divisors (1943843).

52778461 is a wasteful number, since it uses less digits than its factorization.

52778461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7571.

The product of its digits is 94080, while the sum is 40.

The square root of 52778461 is about 7264.8785949939. The cubic root of 52778461 is about 375.1044710409.

The spelling of 52778461 in words is "fifty-two million, seven hundred seventy-eight thousand, four hundred sixty-one".