53279551 has 4 divisors (see below), whose sum is σ = 57377992. Its totient is φ = 49181112.

The previous prime is 53279533. The next prime is 53279573. The reversal of 53279551 is 15597235.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15597235 = 5 ⋅3119447.

It is a cyclic number.

It is not a de Polignac number, because 53279551 - 2⁷ = 53279423 is a prime.

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 53279551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53279521) 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, 2049201 + ... + 2049226.

It is an arithmetic number, because the mean of its divisors is an integer number (14344498).

Almost surely, 2^53279551 is an apocalyptic number.

53279551 is a deficient number, since it is larger than the sum of its proper divisors (4098441).

53279551 is a wasteful number, since it uses less digits than its factorization.

53279551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098440.

The product of its digits is 47250, while the sum is 37.

The square root of 53279551 is about 7299.2842799825. The cubic root of 53279551 is about 376.2878412141.

It can be divided in two parts, 5327 and 9551, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 53279551 in words is "fifty-three million, two hundred seventy-nine thousand, five hundred fifty-one".