52415531 has 8 divisors (see below), whose sum is σ = 60885984. Its totient is φ = 44190720.

The previous prime is 52415521. The next prime is 52415543. The reversal of 52415531 is 13551425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52415531 - 2¹⁰ = 52414507 is a prime.

It is a super-2 number, since 2×52415531² = 5494775780023922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52415531.

It is not an unprimeable number, because it can be changed into a prime (52415501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60950 + ... + 61803.

It is an arithmetic number, because the mean of its divisors is an integer number (7610748).

Almost surely, 2^52415531 is an apocalyptic number.

52415531 is a deficient number, since it is larger than the sum of its proper divisors (8470453).

52415531 is a wasteful number, since it uses less digits than its factorization.

52415531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122821.

The product of its digits is 3000, while the sum is 26.

The square root of 52415531 is about 7239.8571118497. The cubic root of 52415531 is about 374.2426932899.

Adding to 52415531 its reverse (13551425), we get a palindrome (65966956).

The spelling of 52415531 in words is "fifty-two million, four hundred fifteen thousand, five hundred thirty-one".