5625889491 has 4 divisors (see below), whose sum is σ = 7501185992. Its totient is φ = 3750592992.

The previous prime is 5625889459. The next prime is 5625889541. The reversal of 5625889491 is 1949885265.

It is a happy number.

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

It is not a de Polignac number, because 5625889491 - 2⁵ = 5625889459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5625889411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937648246 + ... + 937648251.

It is an arithmetic number, because the mean of its divisors is an integer number (1875296498).

Almost surely, 2^5625889491 is an apocalyptic number.

5625889491 is a deficient number, since it is larger than the sum of its proper divisors (1875296501).

5625889491 is a wasteful number, since it uses less digits than its factorization.

5625889491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875296500.

The product of its digits is 6220800, while the sum is 57.

The square root of 5625889491 is about 75005.9297055906. The cubic root of 5625889491 is about 1778.5403902548.

The spelling of 5625889491 in words is "five billion, six hundred twenty-five million, eight hundred eighty-nine thousand, four hundred ninety-one".