53051551 has 16 divisors (see below), whose sum is σ = 62343424. Its totient is φ = 44198784.

The previous prime is 53051549. The next prime is 53051567. The reversal of 53051551 is 15515035.

It is not a de Polignac number, because 53051551 - 2¹ = 53051549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53051521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101176 + ... + 101698.

It is an arithmetic number, because the mean of its divisors is an integer number (3896464).

Almost surely, 2^53051551 is an apocalyptic number.

53051551 is a deficient number, since it is larger than the sum of its proper divisors (9291873).

53051551 is a wasteful number, since it uses less digits than its factorization.

53051551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 53051551 is about 7283.6495659800. The cubic root of 53051551 is about 375.7503223018.

Adding to 53051551 its reverse (15515035), we get a palindrome (68566586).

The spelling of 53051551 in words is "fifty-three million, fifty-one thousand, five hundred fifty-one".