4220252545 has 16 divisors (see below), whose sum is σ = 5372835840. Its totient is φ = 3173313024.

The previous prime is 4220252539. The next prime is 4220252563. The reversal of 4220252545 is 5452520224.

It is a cyclic number.

It is not a de Polignac number, because 4220252545 - 2³ = 4220252537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162832 + ... + 186961.

It is an arithmetic number, because the mean of its divisors is an integer number (335802240).

Almost surely, 2^4220252545 is an apocalyptic number.

It is an amenable number.

4220252545 is a deficient number, since it is larger than the sum of its proper divisors (1152583295).

4220252545 is a wasteful number, since it uses less digits than its factorization.

4220252545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349944.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 4220252545 is about 64963.4708509328. The cubic root of 4220252545 is about 1616.0178249809.

Adding to 4220252545 its reverse (5452520224), we get a palindrome (9672772769).

The spelling of 4220252545 in words is "four billion, two hundred twenty million, two hundred fifty-two thousand, five hundred forty-five".