52471620 has 36 divisors (see below), whose sum is σ = 159164460. Its totient is φ = 13992384.

The previous prime is 52471607. The next prime is 52471631. The reversal of 52471620 is 2617425.

It can be written as a sum of positive squares in 2 ways, for example, as 32970564 + 19501056 = 5742^2 + 4416^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145575 + ... + 145934.

It is an arithmetic number, because the mean of its divisors is an integer number (4421235).

Almost surely, 2^52471620 is an apocalyptic number.

It is an amenable number.

52471620 is an abundant number, since it is smaller than the sum of its proper divisors (106692840).

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

52471620 is a wasteful number, since it uses less digits than its factorization.

52471620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291524 (or 291519 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 52471620 is about 7243.7297023012. The cubic root of 52471620 is about 374.3761360255.

The spelling of 52471620 in words is "fifty-two million, four hundred seventy-one thousand, six hundred twenty".