275878061 has 8 divisors (see below), whose sum is σ = 281054880. Its totient is φ = 270732528.

The previous prime is 275878049. The next prime is 275878063. The reversal of 275878061 is 160878572.

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

It is a de Polignac number, because none of the positive numbers 2^k-275878061 is a prime.

It is a super-2 number, since 2×275878061² = 152217409082239442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275878063) 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, 10370 + ... + 25676.

It is an arithmetic number, because the mean of its divisors is an integer number (35131860).

Almost surely, 2^275878061 is an apocalyptic number.

It is an amenable number.

275878061 is a deficient number, since it is larger than the sum of its proper divisors (5176819).

275878061 is a wasteful number, since it uses less digits than its factorization.

275878061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15643.

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 275878061 is about 16609.5773877604. The cubic root of 275878061 is about 650.9871084742.

The spelling of 275878061 in words is "two hundred seventy-five million, eight hundred seventy-eight thousand, sixty-one".