53743257 has 40 divisors (see below), whose sum is σ = 83272200. Its totient is φ = 34525440.

The previous prime is 53743253. The next prime is 53743271. The reversal of 53743257 is 75234735.

It can be written as a sum of positive squares in 4 ways, for example, as 467856 + 53275401 = 684^2 + 7299^2 .

It is not a de Polignac number, because 53743257 - 2² = 53743253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53743253) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 360619 + ... + 360767.

It is an arithmetic number, because the mean of its divisors is an integer number (2081805).

Almost surely, 2^53743257 is an apocalyptic number.

It is an amenable number.

53743257 is a deficient number, since it is larger than the sum of its proper divisors (29528943).

53743257 is a wasteful number, since it uses less digits than its factorization.

53743257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 286 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 53743257 is about 7330.9792661008. The cubic root of 53743257 is about 377.3763336278.

The spelling of 53743257 in words is "fifty-three million, seven hundred forty-three thousand, two hundred fifty-seven".