261059253 has 16 divisors (see below), whose sum is σ = 428405376. Its totient is φ = 137701440.

The previous prime is 261059233. The next prime is 261059257. The reversal of 261059253 is 352950162.

It is not a de Polignac number, because 261059253 - 2⁸ = 261058997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261059257) 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, 477858 + ... + 478403.

It is an arithmetic number, because the mean of its divisors is an integer number (26775336).

Almost surely, 2^261059253 is an apocalyptic number.

It is an amenable number.

261059253 is a deficient number, since it is larger than the sum of its proper divisors (167346123).

261059253 is a wasteful number, since it uses less digits than its factorization.

261059253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956284.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 261059253 is about 16157.3281516469. The cubic root of 261059253 is about 639.1160101968.

The spelling of 261059253 in words is "two hundred sixty-one million, fifty-nine thousand, two hundred fifty-three".