53663967 has 18 divisors (see below), whose sum is σ = 90170808. Its totient is φ = 30664872.

The previous prime is 53663959. The next prime is 53663969. The reversal of 53663967 is 76936635.

53663967 is a `hidden beast` number, since 5 + 3 + 6 + 639 + 6 + 7 = 666.

It is not a de Polignac number, because 53663967 - 2³ = 53663959 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53663969) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 60403 + ... + 61284.

Almost surely, 2^53663967 is an apocalyptic number.

53663967 is a deficient number, since it is larger than the sum of its proper divisors (36506841).

53663967 is a wasteful number, since it uses less digits than its factorization.

53663967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121707 (or 121697 counting only the distinct ones).

The product of its digits is 612360, while the sum is 45.

The square root of 53663967 is about 7325.5693976646. The cubic root of 53663967 is about 377.1906551605.

The spelling of 53663967 in words is "fifty-three million, six hundred sixty-three thousand, nine hundred sixty-seven".