53692691 has 4 divisors (see below), whose sum is σ = 57822912. Its totient is φ = 49562472.

The previous prime is 53692673. The next prime is 53692703. The reversal of 53692691 is 19629635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19629635 = 5 ⋅3925927.

It is a cyclic number.

It is not a de Polignac number, because 53692691 - 2¹⁸ = 53430547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53692091) 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, 2065091 + ... + 2065116.

It is an arithmetic number, because the mean of its divisors is an integer number (14455728).

Almost surely, 2^53692691 is an apocalyptic number.

53692691 is a deficient number, since it is larger than the sum of its proper divisors (4130221).

53692691 is a wasteful number, since it uses less digits than its factorization.

53692691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130220.

The product of its digits is 87480, while the sum is 41.

The square root of 53692691 is about 7327.5296655831. The cubic root of 53692691 is about 377.2579411036.

The spelling of 53692691 in words is "fifty-three million, six hundred ninety-two thousand, six hundred ninety-one".