425109591 has 24 divisors (see below), whose sum is σ = 647515440. Its totient is φ = 268012800.

The previous prime is 425109557. The next prime is 425109593. The reversal of 425109591 is 195901524.

It is not a de Polignac number, because 425109591 - 2⁶ = 425109527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425109593) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111151 + ... + 114911.

It is an arithmetic number, because the mean of its divisors is an integer number (26979810).

Almost surely, 2^425109591 is an apocalyptic number.

425109591 is a deficient number, since it is larger than the sum of its proper divisors (222405849).

425109591 is a wasteful number, since it uses less digits than its factorization.

425109591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447 (or 4444 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 425109591 is about 20618.1859289318. The cubic root of 425109591 is about 751.9119166249.

The spelling of 425109591 in words is "four hundred twenty-five million, one hundred nine thousand, five hundred ninety-one".