425024261 has 8 divisors (see below), whose sum is σ = 444036600. Its totient is φ = 406302400.

The previous prime is 425024231. The next prime is 425024269. The reversal of 425024261 is 162420524.

It can be written as a sum of positive squares in 4 ways, for example, as 59985025 + 365039236 = 7745^2 + 19106^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425024261 is a prime.

It is a super-2 number, since 2×425024261² = 361291244877192242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425024261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425024269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69626 + ... + 75483.

It is an arithmetic number, because the mean of its divisors is an integer number (55504575).

Almost surely, 2^425024261 is an apocalyptic number.

It is an amenable number.

425024261 is a deficient number, since it is larger than the sum of its proper divisors (19012339).

425024261 is a wasteful number, since it uses less digits than its factorization.

425024261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145239.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 425024261 is about 20616.1165353711. The cubic root of 425024261 is about 751.8616041576.

Adding to 425024261 its reverse (162420524), we get a palindrome (587444785).

The spelling of 425024261 in words is "four hundred twenty-five million, twenty-four thousand, two hundred sixty-one".