53257775 has 12 divisors (see below), whose sum is σ = 68317800. Its totient is φ = 41136480.

The previous prime is 53257769. The next prime is 53257781. The reversal of 53257775 is 57775235.

It is an interprime number because it is at equal distance from previous prime (53257769) and next prime (53257781).

It is not a de Polignac number, because 53257775 - 2⁴ = 53257759 is a prime.

It is a super-3 number, since 3×53257775³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36005 + ... + 37454.

It is an arithmetic number, because the mean of its divisors is an integer number (5693150).

Almost surely, 2^53257775 is an apocalyptic number.

53257775 is a deficient number, since it is larger than the sum of its proper divisors (15060025).

53257775 is a wasteful number, since it uses less digits than its factorization.

53257775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73498 (or 73493 counting only the distinct ones).

The product of its digits is 257250, while the sum is 41.

The square root of 53257775 is about 7297.7924744405. The cubic root of 53257775 is about 376.2365697571.

The spelling of 53257775 in words is "fifty-three million, two hundred fifty-seven thousand, seven hundred seventy-five".