53551651 has 8 divisors (see below), whose sum is σ = 54371520. Its totient is φ = 52735488.

The previous prime is 53551627. The next prime is 53551669. The reversal of 53551651 is 15615535.

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 53551651 - 2⁷ = 53551523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53551051) 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, 43395 + ... + 44611.

It is an arithmetic number, because the mean of its divisors is an integer number (6796440).

Almost surely, 2^53551651 is an apocalyptic number.

53551651 is a deficient number, since it is larger than the sum of its proper divisors (819869).

53551651 is a wasteful number, since it uses less digits than its factorization.

53551651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853.

The product of its digits is 11250, while the sum is 31.

The square root of 53551651 is about 7317.8993570560. The cubic root of 53551651 is about 376.9273243010.

The spelling of 53551651 in words is "fifty-three million, five hundred fifty-one thousand, six hundred fifty-one".