53652691 has 4 divisors (see below), whose sum is σ = 54900472. Its totient is φ = 52404912.

The previous prime is 53652673. The next prime is 53652707. The reversal of 53652691 is 19625635.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53652691 - 2⁵ = 53652659 is a prime.

It is a super-3 number, since 3×53652691³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53652691.

It is not an unprimeable number, because it can be changed into a prime (53652601) 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, 623826 + ... + 623911.

It is an arithmetic number, because the mean of its divisors is an integer number (13725118).

Almost surely, 2^53652691 is an apocalyptic number.

53652691 is a deficient number, since it is larger than the sum of its proper divisors (1247781).

53652691 is a wasteful number, since it uses less digits than its factorization.

53652691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247780.

The product of its digits is 48600, while the sum is 37.

The square root of 53652691 is about 7324.7997242245. The cubic root of 53652691 is about 377.1642345782.

The spelling of 53652691 in words is "fifty-three million, six hundred fifty-two thousand, six hundred ninety-one".