53148787 has 4 divisors (see below), whose sum is σ = 54863296. Its totient is φ = 51434280.

The previous prime is 53148769. The next prime is 53148841. The reversal of 53148787 is 78784135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53148787 - 2¹⁹ = 52624499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53148707) 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, 857208 + ... + 857269.

It is an arithmetic number, because the mean of its divisors is an integer number (13715824).

Almost surely, 2^53148787 is an apocalyptic number.

53148787 is a deficient number, since it is larger than the sum of its proper divisors (1714509).

53148787 is a wasteful number, since it uses less digits than its factorization.

53148787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714508.

The product of its digits is 188160, while the sum is 43.

The square root of 53148787 is about 7290.3214606765. The cubic root of 53148787 is about 375.9797479472.

It can be divided in two parts, 53148 and 787, that added together give a palindrome (53935).

The spelling of 53148787 in words is "fifty-three million, one hundred forty-eight thousand, seven hundred eighty-seven".