52777491 has 8 divisors (see below), whose sum is σ = 75783120. Its totient is φ = 32478432.

The previous prime is 52777481. The next prime is 52777493. The reversal of 52777491 is 19477725.

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

It is not a de Polignac number, because 52777491 - 2¹⁵ = 52744723 is a prime.

It is a super-3 number, since 3×52777491³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (52777493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676596 + ... + 676673.

It is an arithmetic number, because the mean of its divisors is an integer number (9472890).

Almost surely, 2^52777491 is an apocalyptic number.

52777491 is a deficient number, since it is larger than the sum of its proper divisors (23005629).

52777491 is a wasteful number, since it uses less digits than its factorization.

52777491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353285.

The product of its digits is 123480, while the sum is 42.

The square root of 52777491 is about 7264.8118351407. The cubic root of 52777491 is about 375.1021730481.

The spelling of 52777491 in words is "fifty-two million, seven hundred seventy-seven thousand, four hundred ninety-one".