425292381 has 6 divisors (see below), whose sum is σ = 614311230. Its totient is φ = 283528248.

The previous prime is 425292377. The next prime is 425292389. The reversal of 425292381 is 183292524.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 305061156 + 120231225 = 17466^2 + 10965^2 .

It is not a de Polignac number, because 425292381 - 2² = 425292377 is a prime.

It is a super-2 number, since 2×425292381² = 361747218673298322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425292389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23627346 + ... + 23627363.

It is an arithmetic number, because the mean of its divisors is an integer number (102385205).

Almost surely, 2^425292381 is an apocalyptic number.

It is an amenable number.

425292381 is a deficient number, since it is larger than the sum of its proper divisors (189018849).

425292381 is a wasteful number, since it uses less digits than its factorization.

425292381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47254715 (or 47254712 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 425292381 is about 20622.6181897450. The cubic root of 425292381 is about 752.0196710233.

The spelling of 425292381 in words is "four hundred twenty-five million, two hundred ninety-two thousand, three hundred eighty-one".