87725055 has 16 divisors (see below), whose sum is σ = 153120384. Its totient is φ = 42533280.

The previous prime is 87725051. The next prime is 87725063. The reversal of 87725055 is 55052778.

It is not a de Polignac number, because 87725055 - 2² = 87725051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87725051) 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, 265669 + ... + 265998.

It is an arithmetic number, because the mean of its divisors is an integer number (9570024).

Almost surely, 2^87725055 is an apocalyptic number.

87725055 is a deficient number, since it is larger than the sum of its proper divisors (65395329).

87725055 is a wasteful number, since it uses less digits than its factorization.

87725055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531686.

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 87725055 is about 9366.1654373602. The cubic root of 87725055 is about 444.3322983135.

The spelling of 87725055 in words is "eighty-seven million, seven hundred twenty-five thousand, fifty-five".