63691053 has 8 divisors (see below), whose sum is σ = 85072416. Its totient is φ = 42385200.

The previous prime is 63691049. The next prime is 63691057. The reversal of 63691053 is 35019636.

It is an interprime number because it is at equal distance from previous prime (63691049) and next prime (63691057).

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

It is not a de Polignac number, because 63691053 - 2² = 63691049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63691057) 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, 16878 + ... + 20303.

It is an arithmetic number, because the mean of its divisors is an integer number (10634052).

Almost surely, 2^63691053 is an apocalyptic number.

It is an amenable number.

63691053 is a deficient number, since it is larger than the sum of its proper divisors (21381363).

63691053 is a wasteful number, since it uses less digits than its factorization.

63691053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37755.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 63691053 is about 7980.6674532899. The cubic root of 63691053 is about 399.3553219504.

The spelling of 63691053 in words is "sixty-three million, six hundred ninety-one thousand, fifty-three".