52155576 has 128 divisors (see below), whose sum is σ = 160588800. Its totient is φ = 15746400.

The previous prime is 52155569. The next prime is 52155583. The reversal of 52155576 is 67555125.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52155569) and next prime (52155583).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 52155576.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192321 + ... + 192591.

It is an arithmetic number, because the mean of its divisors is an integer number (1254600).

Almost surely, 2^52155576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52155576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80294400).

52155576 is an abundant number, since it is smaller than the sum of its proper divisors (108433224).

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

52155576 is a wasteful number, since it uses less digits than its factorization.

52155576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 287 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 52155576 is about 7221.8817492396. The cubic root of 52155576 is about 373.6229817109.

The spelling of 52155576 in words is "fifty-two million, one hundred fifty-five thousand, five hundred seventy-six".