7543625042 has 8 divisors (see below), whose sum is σ = 11326655100. Its totient is φ = 3768073344.

The previous prime is 7543625027. The next prime is 7543625069. The reversal of 7543625042 is 2405263457.

It can be written as a sum of positive squares in 2 ways, for example, as 6509423761 + 1034201281 = 80681^2 + 32159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7543624987 and 7543625005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1867067 + ... + 1871102.

Almost surely, 2^7543625042 is an apocalyptic number.

7543625042 is a deficient number, since it is larger than the sum of its proper divisors (3783030058).

7543625042 is a wasteful number, since it uses less digits than its factorization.

7543625042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739180.

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 7543625042 is about 86854.0444769269. The cubic root of 7543625042 is about 1961.2217360353.

Adding to 7543625042 its reverse (2405263457), we get a palindrome (9948888499).

The spelling of 7543625042 in words is "seven billion, five hundred forty-three million, six hundred twenty-five thousand, forty-two".