5420531642 has 4 divisors (see below), whose sum is σ = 8130797466. Its totient is φ = 2710265820.

The previous prime is 5420531621. The next prime is 5420531671. The reversal of 5420531642 is 2461350245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3182200921 + 2238330721 = 56411^2 + 47311^2 .

It is a super-4 number, since 4×5420531642⁴ (a number of 40 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5420531599 and 5420531608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1355132909 + ... + 1355132912.

Almost surely, 2^5420531642 is an apocalyptic number.

5420531642 is a deficient number, since it is larger than the sum of its proper divisors (2710265824).

5420531642 is a wasteful number, since it uses less digits than its factorization.

5420531642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710265823.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 5420531642 is about 73624.2598740388. The cubic root of 5420531642 is about 1756.6313450901.

Adding to 5420531642 its reverse (2461350245), we get a palindrome (7881881887).

The spelling of 5420531642 in words is "five billion, four hundred twenty million, five hundred thirty-one thousand, six hundred forty-two".