261255562 has 8 divisors (see below), whose sum is σ = 392064192. Its totient is φ = 130567500.

The previous prime is 261255559. The next prime is 261255583. The reversal of 261255562 is 265552162.

261255562 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24514 + ... + 33517.

It is an arithmetic number, because the mean of its divisors is an integer number (49008024).

Almost surely, 2^261255562 is an apocalyptic number.

261255562 is a deficient number, since it is larger than the sum of its proper divisors (130808630).

261255562 is a wasteful number, since it uses less digits than its factorization.

261255562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60284.

The product of its digits is 36000, while the sum is 34.

The square root of 261255562 is about 16163.4019315242. The cubic root of 261255562 is about 639.2761689706.

The spelling of 261255562 in words is "two hundred sixty-one million, two hundred fifty-five thousand, five hundred sixty-two".