53440651 has 8 divisors (see below), whose sum is σ = 58359600. Its totient is φ = 48531840.

The previous prime is 53440637. The next prime is 53440657. The reversal of 53440651 is 15604435.

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

It is a cyclic number.

It is not a de Polignac number, because 53440651 - 2¹³ = 53432459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53440657) 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, 12295 + ... + 16063.

It is an arithmetic number, because the mean of its divisors is an integer number (7294950).

Almost surely, 2^53440651 is an apocalyptic number.

53440651 is a deficient number, since it is larger than the sum of its proper divisors (4918949).

53440651 is a wasteful number, since it uses less digits than its factorization.

53440651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 53440651 is about 7310.3112792822. The cubic root of 53440651 is about 376.6667168751. Note that the first 3 decimals are identical.

The spelling of 53440651 in words is "fifty-three million, four hundred forty thousand, six hundred fifty-one".