52561476 has 72 divisors (see below), whose sum is σ = 145742688. Its totient is φ = 15840000.

The previous prime is 52561471. The next prime is 52561489. The reversal of 52561476 is 67416525.

It is a happy number.

52561476 is a `hidden beast` number, since 52 + 561 + 47 + 6 = 666.

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 52561476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52561471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130876 + ... + 131276.

It is an arithmetic number, because the mean of its divisors is an integer number (2024204).

Almost surely, 2^52561476 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 52561476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72871344).

52561476 is an abundant number, since it is smaller than the sum of its proper divisors (93181212).

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

52561476 is a wasteful number, since it uses less digits than its factorization.

52561476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 748 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 52561476 is about 7249.9293789664. The cubic root of 52561476 is about 374.5897166105.

It can be divided in two parts, 525 and 61476, that added together give a square (62001 = 249²).

The spelling of 52561476 in words is "fifty-two million, five hundred sixty-one thousand, four hundred seventy-six".