53155651 has 4 divisors (see below), whose sum is σ = 56282472. Its totient is φ = 50028832.

The previous prime is 53155649. The next prime is 53155657. The reversal of 53155651 is 15655135.

53155651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15655135 = 5 ⋅3131027.

It is a cyclic number.

It is not a de Polignac number, because 53155651 - 2¹ = 53155649 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53155657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1563385 + ... + 1563418.

It is an arithmetic number, because the mean of its divisors is an integer number (14070618).

Almost surely, 2^53155651 is an apocalyptic number.

53155651 is a deficient number, since it is larger than the sum of its proper divisors (3126821).

53155651 is a wasteful number, since it uses less digits than its factorization.

53155651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3126820.

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

The square root of 53155651 is about 7290.7922066124. The cubic root of 53155651 is about 375.9959327876.

The spelling of 53155651 in words is "fifty-three million, one hundred fifty-five thousand, six hundred fifty-one".