52780969 has 4 divisors (see below), whose sum is σ = 53046400. Its totient is φ = 52515540.

The previous prime is 52780967. The next prime is 52780979. The reversal of 52780969 is 96908725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52780969 - 2¹ = 52780967 is a prime.

It is a super-2 number, since 2×52780969² = 5571661377157922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52780963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132417 + ... + 132814.

It is an arithmetic number, because the mean of its divisors is an integer number (13261600).

Almost surely, 2^52780969 is an apocalyptic number.

It is an amenable number.

52780969 is a deficient number, since it is larger than the sum of its proper divisors (265431).

52780969 is a wasteful number, since it uses less digits than its factorization.

52780969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265430.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 52780969 is about 7265.0512042242. The cubic root of 52780969 is about 375.1104125247.

It can be divided in two parts, 527809 and 69, that added together give a triangular number (527878 = T₁₀₂₇).

The spelling of 52780969 in words is "fifty-two million, seven hundred eighty thousand, nine hundred sixty-nine".