63251897 has 4 divisors (see below), whose sum is σ = 63275520. Its totient is φ = 63228276.

The previous prime is 63251887. The next prime is 63251899. The reversal of 63251897 is 79815236.

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 63251897 - 2¹² = 63247801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63251899) 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, 7193 + ... + 13350.

It is an arithmetic number, because the mean of its divisors is an integer number (15818880).

Almost surely, 2^63251897 is an apocalyptic number.

It is an amenable number.

63251897 is a deficient number, since it is larger than the sum of its proper divisors (23623).

63251897 is a wasteful number, since it uses less digits than its factorization.

63251897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23622.

The product of its digits is 90720, while the sum is 41.

The square root of 63251897 is about 7953.1061227674. The cubic root of 63251897 is about 398.4353396587.

The spelling of 63251897 in words is "sixty-three million, two hundred fifty-one thousand, eight hundred ninety-seven".