52261512 has 64 divisors (see below), whose sum is σ = 135432000. Its totient is φ = 16794624.

The previous prime is 52261507. The next prime is 52261523. The reversal of 52261512 is 21516225.

It is a happy number.

It is a super-2 number, since 2×52261512² = 5462531273052288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91564 + ... + 92132.

It is an arithmetic number, because the mean of its divisors is an integer number (2116125).

Almost surely, 2^52261512 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 52261512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67716000).

52261512 is an abundant number, since it is smaller than the sum of its proper divisors (83170488).

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

52261512 is a wasteful number, since it uses less digits than its factorization.

52261512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 706 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 52261512 is about 7229.2124052348. The cubic root of 52261512 is about 373.8757725574.

Adding to 52261512 its reverse (21516225), we get a palindrome (73777737).

The spelling of 52261512 in words is "fifty-two million, two hundred sixty-one thousand, five hundred twelve".