625061155 has 4 divisors (see below), whose sum is σ = 750073392. Its totient is φ = 500048920.

The previous prime is 625061147. The next prime is 625061191. The reversal of 625061155 is 551160526.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 625061155 - 2³ = 625061147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62506111 + ... + 62506120.

It is an arithmetic number, because the mean of its divisors is an integer number (187518348).

Almost surely, 2^625061155 is an apocalyptic number.

625061155 is a deficient number, since it is larger than the sum of its proper divisors (125012237).

625061155 is a wasteful number, since it uses less digits than its factorization.

625061155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125012236.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 625061155 is about 25001.2230700820. The cubic root of 625061155 is about 855.0158587166.

The spelling of 625061155 in words is "six hundred twenty-five million, sixty-one thousand, one hundred fifty-five".