52155725 has 12 divisors (see below), whose sum is σ = 65186304. Its totient is φ = 41393520.

The previous prime is 52155713. The next prime is 52155739. The reversal of 52155725 is 52755125.

It is not a de Polignac number, because 52155725 - 2⁴ = 52155709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52155691 and 52155700.

It is a congruent number.

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, 5039 + ... + 11388.

It is an arithmetic number, because the mean of its divisors is an integer number (5432192).

Almost surely, 2^52155725 is an apocalyptic number.

It is an amenable number.

52155725 is a deficient number, since it is larger than the sum of its proper divisors (13030579).

52155725 is a wasteful number, since it uses less digits than its factorization.

52155725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16564 (or 16559 counting only the distinct ones).

The product of its digits is 17500, while the sum is 32.

The square root of 52155725 is about 7221.8920651032. The cubic root of 52155725 is about 373.6233375039.

The spelling of 52155725 in words is "fifty-two million, one hundred fifty-five thousand, seven hundred twenty-five".