425015405251 has 8 divisors (see below), whose sum is σ = 426711527424. Its totient is φ = 423322338120.

The previous prime is 425015405233. The next prime is 425015405257. The reversal of 425015405251 is 152504510524.

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

It is a cyclic number.

It is not a de Polignac number, because 425015405251 - 2²¹ = 425013308099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425015405257) 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, 484765 + ... + 1041646.

It is an arithmetic number, because the mean of its divisors is an integer number (53338940928).

Almost surely, 2^425015405251 is an apocalyptic number.

425015405251 is a deficient number, since it is larger than the sum of its proper divisors (1696122173).

425015405251 is a wasteful number, since it uses less digits than its factorization.

425015405251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527521.

The product of its (nonzero) digits is 40000, while the sum is 34.

Adding to 425015405251 its reverse (152504510524), we get a palindrome (577519915775).

The spelling of 425015405251 in words is "four hundred twenty-five billion, fifteen million, four hundred five thousand, two hundred fifty-one".