53779506 has 16 divisors (see below), whose sum is σ = 117337248. Its totient is φ = 16296800.

The previous prime is 53779501. The next prime is 53779507. The reversal of 53779506 is 60597735.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53779501) 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, 407355 + ... + 407486.

It is an arithmetic number, because the mean of its divisors is an integer number (7333578).

Almost surely, 2^53779506 is an apocalyptic number.

53779506 is an abundant number, since it is smaller than the sum of its proper divisors (63557742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53779506 is a wasteful number, since it uses less digits than its factorization.

53779506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814857.

The product of its (nonzero) digits is 198450, while the sum is 42.

The square root of 53779506 is about 7333.4511657200. The cubic root of 53779506 is about 377.4611594031.

It can be divided in two parts, 53779 and 506, that added together give a triangular number (54285 = T₃₂₉).

The spelling of 53779506 in words is "fifty-three million, seven hundred seventy-nine thousand, five hundred six".