53651265 has 16 divisors (see below), whose sum is σ = 86222400. Its totient is φ = 28487232.

The previous prime is 53651263. The next prime is 53651281. The reversal of 53651265 is 56215635.

It is not a de Polignac number, because 53651265 - 2¹ = 53651263 is a prime.

It is a super-2 number, since 2×53651265² = 5756916472200450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53651263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4375 + ... + 11244.

It is an arithmetic number, because the mean of its divisors is an integer number (5388900).

Almost surely, 2^53651265 is an apocalyptic number.

It is an amenable number.

53651265 is a deficient number, since it is larger than the sum of its proper divisors (32571135).

53651265 is a wasteful number, since it uses less digits than its factorization.

53651265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15856.

The product of its digits is 27000, while the sum is 33.

The square root of 53651265 is about 7324.7023830324. The cubic root of 53651265 is about 377.1608930810.

The spelling of 53651265 in words is "fifty-three million, six hundred fifty-one thousand, two hundred sixty-five".