261052053 has 8 divisors (see below), whose sum is σ = 355475328. Its totient is φ = 170331744.

The previous prime is 261052037. The next prime is 261052063. The reversal of 261052053 is 350250162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 261052053 - 2⁴ = 261052037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261052003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925576 + ... + 925857.

It is an arithmetic number, because the mean of its divisors is an integer number (44434416).

Almost surely, 2^261052053 is an apocalyptic number.

It is an amenable number.

261052053 is a deficient number, since it is larger than the sum of its proper divisors (94423275).

261052053 is a wasteful number, since it uses less digits than its factorization.

261052053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851483.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 261052053 is about 16157.1053409947. The cubic root of 261052053 is about 639.1101345479.

The spelling of 261052053 in words is "two hundred sixty-one million, fifty-two thousand, fifty-three".