425561544 has 192 divisors, whose sum is σ = 1330992000. Its totient is φ = 121927680.

The previous prime is 425561537. The next prime is 425561551. The reversal of 425561544 is 445165524.

425561544 is a `hidden beast` number, since 4 + 2 + 55 + 61 + 544 = 666.

It is an interprime number because it is at equal distance from previous prime (425561537) and next prime (425561551).

It is a super-2 number, since 2×425561544² = 362205255463327872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 425561499 and 425561508.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 674109 + ... + 674739.

It is an arithmetic number, because the mean of its divisors is an integer number (6932250).

Almost surely, 2^425561544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425561544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665496000).

425561544 is an abundant number, since it is smaller than the sum of its proper divisors (905430456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425561544 is a wasteful number, since it uses less digits than its factorization.

425561544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 701 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 425561544 is about 20629.1430747862. The cubic root of 425561544 is about 752.1782859687.

It can be divided in two parts, 42556 and 1544, that added together give a square (44100 = 210²).

The spelling of 425561544 in words is "four hundred twenty-five million, five hundred sixty-one thousand, five hundred forty-four".