53145744 has 20 divisors (see below), whose sum is σ = 137293296. Its totient is φ = 17715232.

The previous prime is 53145737. The next prime is 53145751. The reversal of 53145744 is 44754135.

It is an interprime number because it is at equal distance from previous prime (53145737) and next prime (53145751).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553554 + ... + 553649.

Almost surely, 2^53145744 is an apocalyptic number.

It is an amenable number.

53145744 is an abundant number, since it is smaller than the sum of its proper divisors (84147552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53145744 is a wasteful number, since it uses less digits than its factorization.

53145744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107214 (or 1107208 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 53145744 is about 7290.1127563296. The cubic root of 53145744 is about 375.9725723165.

Adding to 53145744 its reverse (44754135), we get a palindrome (97899879).

The spelling of 53145744 in words is "fifty-three million, one hundred forty-five thousand, seven hundred forty-four".