261053007 has 8 divisors (see below), whose sum is σ = 348400560. Its totient is φ = 173870400.

The previous prime is 261052889. The next prime is 261053029. The reversal of 261053007 is 700350162.

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

It is not a de Polignac number, because 261053007 - 2²² = 256858703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261053057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37494 + ... + 43907.

It is an arithmetic number, because the mean of its divisors is an integer number (43550070).

Almost surely, 2^261053007 is an apocalyptic number.

261053007 is a deficient number, since it is larger than the sum of its proper divisors (87347553).

261053007 is a wasteful number, since it uses less digits than its factorization.

261053007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82473.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 261053007 is about 16157.1348635827. The cubic root of 261053007 is about 639.1109130776.

The spelling of 261053007 in words is "two hundred sixty-one million, fifty-three thousand, seven".