425210291 has 16 divisors (see below), whose sum is σ = 504038400. Its totient is φ = 354391200.

The previous prime is 425210287. The next prime is 425210293. The reversal of 425210291 is 192012524.

It is a cyclic number.

It is not a de Polignac number, because 425210291 - 2² = 425210287 is a prime.

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 425210291.

It is not an unprimeable number, because it can be changed into a prime (425210293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26336 + ... + 39293.

It is an arithmetic number, because the mean of its divisors is an integer number (31502400).

Almost surely, 2^425210291 is an apocalyptic number.

425210291 is a deficient number, since it is larger than the sum of its proper divisors (78828109).

425210291 is a wasteful number, since it uses less digits than its factorization.

425210291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65690.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 425210291 is about 20620.6278032460. The cubic root of 425210291 is about 751.9712829261.

The spelling of 425210291 in words is "four hundred twenty-five million, two hundred ten thousand, two hundred ninety-one".