425015550 has 72 divisors (see below), whose sum is σ = 1146905760. Its totient is φ = 112838400.

The previous prime is 425015543. The next prime is 425015557. The reversal of 425015550 is 55510524.

It is an interprime number because it is at equal distance from previous prime (425015543) and next prime (425015557).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425015557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 106491 + ... + 110409.

Almost surely, 2^425015550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425015550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573452880).

425015550 is an abundant number, since it is smaller than the sum of its proper divisors (721890210).

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

425015550 is a wasteful number, since it uses less digits than its factorization.

425015550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178 (or 4170 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 425015550 is about 20615.9052675355. The cubic root of 425015550 is about 751.8564675793.

The spelling of 425015550 in words is "four hundred twenty-five million, fifteen thousand, five hundred fifty".