626536241 has 8 divisors (see below), whose sum is σ = 663614280. Its totient is φ = 589483008.

The previous prime is 626536231. The next prime is 626536243. The reversal of 626536241 is 142635626.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 171610000 + 454926241 = 13100^2 + 21329^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 626536241 - 2¹⁸ = 626274097 is a prime.

It is a super-2 number, since 2×626536241² = 785095322572820162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (626536243) 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, 80765 + ... + 88181.

It is an arithmetic number, because the mean of its divisors is an integer number (82951785).

Almost surely, 2^626536241 is an apocalyptic number.

It is an amenable number.

626536241 is a deficient number, since it is larger than the sum of its proper divisors (37078039).

626536241 is a wasteful number, since it uses less digits than its factorization.

626536241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12403.

The product of its digits is 51840, while the sum is 35.

The square root of 626536241 is about 25030.7059628769. The cubic root of 626536241 is about 855.6879162103.

The spelling of 626536241 in words is "six hundred twenty-six million, five hundred thirty-six thousand, two hundred forty-one".