63257413 has 4 divisors (see below), whose sum is σ = 63301888. Its totient is φ = 63212940.

The previous prime is 63257401. The next prime is 63257417. The reversal of 63257413 is 31475236.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63257413 - 2²¹ = 61160261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63257417) 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, 20031 + ... + 22972.

It is an arithmetic number, because the mean of its divisors is an integer number (15825472).

Almost surely, 2^63257413 is an apocalyptic number.

It is an amenable number.

63257413 is a deficient number, since it is larger than the sum of its proper divisors (44475).

63257413 is a wasteful number, since it uses less digits than its factorization.

63257413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44474.

The product of its digits is 15120, while the sum is 31.

The square root of 63257413 is about 7953.4528979557. The cubic root of 63257413 is about 398.4469214217.

The spelling of 63257413 in words is "sixty-three million, two hundred fifty-seven thousand, four hundred thirteen".