7242531552 has 144 divisors (see below), whose sum is σ = 21604145472. Its totient is φ = 2298792960.

The previous prime is 7242531529. The next prime is 7242531559. The reversal of 7242531552 is 2551352427.

7242531552 is a `hidden beast` number, since 72 + 4 + 2 + 5 + 31 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7242531559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493602 + ... + 508062.

It is an arithmetic number, because the mean of its divisors is an integer number (150028788).

Almost surely, 2^7242531552 is an apocalyptic number.

7242531552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7242531552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10802072736).

7242531552 is an abundant number, since it is smaller than the sum of its proper divisors (14361613920).

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

7242531552 is a wasteful number, since it uses less digits than its factorization.

7242531552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14561 (or 14550 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 7242531552 is about 85103.0642926563. The cubic root of 7242531552 is about 1934.7735071317.

Adding to 7242531552 its reverse (2551352427), we get a palindrome (9793883979).

The spelling of 7242531552 in words is "seven billion, two hundred forty-two million, five hundred thirty-one thousand, five hundred fifty-two".