7532221442 has 4 divisors (see below), whose sum is σ = 11298332166. Its totient is φ = 3766110720.

The previous prime is 7532221429. The next prime is 7532221453. The reversal of 7532221442 is 2441222357.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2441222357 = 7 ⋅348746051.

It can be written as a sum of positive squares in only one way, i.e., 7378981801 + 153239641 = 85901^2 + 12379^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7532221399 and 7532221408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1883055359 + ... + 1883055362.

Almost surely, 2^7532221442 is an apocalyptic number.

7532221442 is a deficient number, since it is larger than the sum of its proper divisors (3766110724).

7532221442 is a wasteful number, since it uses less digits than its factorization.

7532221442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766110723.

The product of its digits is 26880, while the sum is 32.

The square root of 7532221442 is about 86788.3715828336. The cubic root of 7532221442 is about 1960.2329864991.

Adding to 7532221442 its reverse (2441222357), we get a palindrome (9973443799).

The spelling of 7532221442 in words is "seven billion, five hundred thirty-two million, two hundred twenty-one thousand, four hundred forty-two".