52780011 has 8 divisors (see below), whose sum is σ = 72643584. Its totient is φ = 34051560.

The previous prime is 52780001. The next prime is 52780037. The reversal of 52780011 is 11008725.

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

It is not a de Polignac number, because 52780011 - 2¹⁰ = 52778987 is a prime.

It is a super-2 number, since 2×52780011² = 5571459122320242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52780001) 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, 283671 + ... + 283856.

It is an arithmetic number, because the mean of its divisors is an integer number (9080448).

Almost surely, 2^52780011 is an apocalyptic number.

52780011 is a deficient number, since it is larger than the sum of its proper divisors (19863573).

52780011 is a wasteful number, since it uses less digits than its factorization.

52780011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567561.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 52780011 is about 7264.9852718364. The cubic root of 52780011 is about 375.1081430328.

Adding to 52780011 its reverse (11008725), we get a palindrome (63788736).

The spelling of 52780011 in words is "fifty-two million, seven hundred eighty thousand, eleven".