425761945 has 16 divisors (see below), whose sum is σ = 584546688. Its totient is φ = 291628800.

The previous prime is 425761939. The next prime is 425761949. The reversal of 425761945 is 549167524.

It is not a de Polignac number, because 425761945 - 2⁹ = 425761433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425761949) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27970 + ... + 40420.

It is an arithmetic number, because the mean of its divisors is an integer number (36534168).

Almost surely, 2^425761945 is an apocalyptic number.

It is an amenable number.

425761945 is a deficient number, since it is larger than the sum of its proper divisors (158784743).

425761945 is a wasteful number, since it uses less digits than its factorization.

425761945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440.

The product of its digits is 302400, while the sum is 43.

The square root of 425761945 is about 20633.9997334496. Note that the first 3 decimals coincide. The cubic root of 425761945 is about 752.2963367558.

It can be divided in two parts, 42576 and 1945, that added together give a square (44521 = 211²).

The spelling of 425761945 in words is "four hundred twenty-five million, seven hundred sixty-one thousand, nine hundred forty-five".