425736261 has 6 divisors (see below), whose sum is σ = 614952390. Its totient is φ = 283824168.

The previous prime is 425736221. The next prime is 425736281. The reversal of 425736261 is 162637524.

425736261 is a `hidden beast` number, since 4 + 25 + 7 + 3 + 626 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 416772225 + 8964036 = 20415^2 + 2994^2 .

It is not a de Polignac number, because 425736261 - 2¹⁰ = 425735237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425736221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23652006 + ... + 23652023.

It is an arithmetic number, because the mean of its divisors is an integer number (102492065).

Almost surely, 2^425736261 is an apocalyptic number.

It is an amenable number.

425736261 is a deficient number, since it is larger than the sum of its proper divisors (189216129).

425736261 is a wasteful number, since it uses less digits than its factorization.

425736261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47304035 (or 47304032 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 425736261 is about 20633.3773532110. The cubic root of 425736261 is about 752.2812090787.

The spelling of 425736261 in words is "four hundred twenty-five million, seven hundred thirty-six thousand, two hundred sixty-one".