5205212455 has 16 divisors (see below), whose sum is σ = 6523006464. Its totient is φ = 3979956640.

The previous prime is 5205212443. The next prime is 5205212477. The reversal of 5205212455 is 5542125025.

It is a happy number.

It is not a de Polignac number, because 5205212455 - 2²⁷ = 5070994727 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 132990 + ... + 167620.

It is an arithmetic number, because the mean of its divisors is an integer number (407687904).

Almost surely, 2^5205212455 is an apocalyptic number.

5205212455 is a deficient number, since it is larger than the sum of its proper divisors (1317794009).

5205212455 is a wasteful number, since it uses less digits than its factorization.

5205212455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35966.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 5205212455 is about 72147.1583293479. The cubic root of 5205212455 is about 1733.0568933117.

The spelling of 5205212455 in words is "five billion, two hundred five million, two hundred twelve thousand, four hundred fifty-five".