46421555 has 4 divisors (see below), whose sum is σ = 55705872. Its totient is φ = 37137240.

The previous prime is 46421533. The next prime is 46421561. The reversal of 46421555 is 55512464.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 46421555 - 2⁸ = 46421299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4642151 + ... + 4642160.

It is an arithmetic number, because the mean of its divisors is an integer number (13926468).

Almost surely, 2^46421555 is an apocalyptic number.

46421555 is a deficient number, since it is larger than the sum of its proper divisors (9284317).

46421555 is an equidigital number, since it uses as much as digits as its factorization.

46421555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9284316.

The product of its digits is 24000, while the sum is 32.

The square root of 46421555 is about 6813.3365541414. The cubic root of 46421555 is about 359.3959907588.

Subtracting 46421555 from its reverse (55512464), we obtain a palindrome (9090909).

The spelling of 46421555 in words is "forty-six million, four hundred twenty-one thousand, five hundred fifty-five".