455603261 has 4 divisors (see below), whose sum is σ = 479582400. Its totient is φ = 431624124.

The previous prime is 455603243. The next prime is 455603287. The reversal of 455603261 is 162306554.

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, and also an emirpimes, since its reverse is a distinct semiprime: 162306554 = 2 ⋅81153277.

It is a cyclic number.

It is not a de Polignac number, because 455603261 - 2¹⁴ = 455586877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455603201) 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, 11989541 + ... + 11989578.

It is an arithmetic number, because the mean of its divisors is an integer number (119895600).

Almost surely, 2^455603261 is an apocalyptic number.

It is an amenable number.

455603261 is a deficient number, since it is larger than the sum of its proper divisors (23979139).

455603261 is a wasteful number, since it uses less digits than its factorization.

455603261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23979138.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 455603261 is about 21344.8649796620. The cubic root of 455603261 is about 769.4769377302.

The spelling of 455603261 in words is "four hundred fifty-five million, six hundred three thousand, two hundred sixty-one".