625363493 has 4 divisors (see below), whose sum is σ = 625434348. Its totient is φ = 625292640.

The previous prime is 625363481. The next prime is 625363517. The reversal of 625363493 is 394363526.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 269550724 + 355812769 = 16418^2 + 18863^2 .

It is a cyclic number.

It is not a de Polignac number, because 625363493 - 2¹⁴ = 625347109 is a prime.

It is a super-2 number, since 2×625363493² = 782158996754322098, 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 625363493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625363463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19928 + ... + 40593.

It is an arithmetic number, because the mean of its divisors is an integer number (156358587).

Almost surely, 2^625363493 is an apocalyptic number.

It is an amenable number.

625363493 is a deficient number, since it is larger than the sum of its proper divisors (70855).

625363493 is a wasteful number, since it uses less digits than its factorization.

625363493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70854.

The product of its digits is 349920, while the sum is 41.

The square root of 625363493 is about 25007.2688032900. The cubic root of 625363493 is about 855.1536916923.

The spelling of 625363493 in words is "six hundred twenty-five million, three hundred sixty-three thousand, four hundred ninety-three".