425258550 has 72 divisors (see below), whose sum is σ = 1152776664. Its totient is φ = 112385280.

The previous prime is 425258543. The next prime is 425258567. The reversal of 425258550 is 55852524.

It is a happy number.

425258550 is a `hidden beast` number, since 4 + 2 + 52 + 58 + 550 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46669 + ... + 55031.

It is an arithmetic number, because the mean of its divisors is an integer number (16010787).

Almost surely, 2^425258550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425258550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576388332).

425258550 is an abundant number, since it is smaller than the sum of its proper divisors (727518114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425258550 is a wasteful number, since it uses less digits than its factorization.

425258550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8494 (or 8486 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The square root of 425258550 is about 20621.7979332550. The cubic root of 425258550 is about 751.9997300342. Note that the first 3 decimals are identical.

The spelling of 425258550 in words is "four hundred twenty-five million, two hundred fifty-eight thousand, five hundred fifty".