531427650 has 288 divisors, whose sum is σ = 1611646848. Its totient is φ = 114892800.

The previous prime is 531427649. The next prime is 531427651. The reversal of 531427650 is 56724135.

It is an interprime number because it is at equal distance from previous prime (531427649) and next prime (531427651).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531427651) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 12961630 + ... + 12961670.

It is an arithmetic number, because the mean of its divisors is an integer number (5595996).

Almost surely, 2^531427650 is an apocalyptic number.

531427650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 531427650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805823424).

531427650 is an abundant number, since it is smaller than the sum of its proper divisors (1080219198).

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

531427650 is a wasteful number, since it uses less digits than its factorization.

531427650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 531427650 is about 23052.7145906941. The cubic root of 531427650 is about 809.9932174405.

The spelling of 531427650 in words is "five hundred thirty-one million, four hundred twenty-seven thousand, six hundred fifty".