42402051544225 has 6 divisors (see below), whose sum is σ = 52578543914870. Its totient is φ = 33921641235360.

The previous prime is 42402051544211. The next prime is 42402051544337. The reversal of 42402051544225 is 52244515020424.

It can be written as a sum of positive squares in 3 ways, for example, as 12824649647104 + 29577401897121 = 3581152^2 + 5438511^2 .

It is not a de Polignac number, because 42402051544225 - 2¹¹ = 42402051542177 is a prime.

It is a super-2 number, since 2×42402051544225² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 848041030860 + ... + 848041030909.

Almost surely, 2^{42402051544225} is an apocalyptic number.

It is an amenable number.

42402051544225 is a deficient number, since it is larger than the sum of its proper divisors (10176492370645).

42402051544225 is a wasteful number, since it uses less digits than its factorization.

42402051544225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696082061779 (or 1696082061774 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 40.

Adding to 42402051544225 its reverse (52244515020424), we get a palindrome (94646566564649).

The spelling of 42402051544225 in words is "forty-two trillion, four hundred two billion, fifty-one million, five hundred forty-four thousand, two hundred twenty-five".