420233625541 has 4 divisors (see below), whose sum is σ = 442351184800. Its totient is φ = 398116066284.

The previous prime is 420233625523. The next prime is 420233625611. The reversal of 420233625541 is 145526332024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420233625541 - 2⁵ = 420233625509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420233625541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420233625521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11058779601 + ... + 11058779638.

It is an arithmetic number, because the mean of its divisors is an integer number (110587796200).

Almost surely, 2^420233625541 is an apocalyptic number.

It is an amenable number.

420233625541 is a deficient number, since it is larger than the sum of its proper divisors (22117559259).

420233625541 is a wasteful number, since it uses less digits than its factorization.

420233625541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22117559258.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 420233625541 its reverse (145526332024), we get a palindrome (565759957565).

The spelling of 420233625541 in words is "four hundred twenty billion, two hundred thirty-three million, six hundred twenty-five thousand, five hundred forty-one".