4951855 has 4 divisors (see below), whose sum is σ = 5942232. Its totient is φ = 3961480.

The previous prime is 4951829. The next prime is 4951861. The reversal of 4951855 is 5581594.

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

It is not a de Polignac number, because 4951855 - 2⁵ = 4951823 is a prime.

It is a Duffinian number.

4951855 is a lucky number.

It is a congruent 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, 495181 + ... + 495190.

It is an arithmetic number, because the mean of its divisors is an integer number (1485558).

Almost surely, 2^4951855 is an apocalyptic number.

4951855 is a deficient number, since it is larger than the sum of its proper divisors (990377).

4951855 is an equidigital number, since it uses as much as digits as its factorization.

4951855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990376.

The product of its digits is 36000, while the sum is 37.

The square root of 4951855 is about 2225.2763873281. The cubic root of 4951855 is about 170.4469782930.

It can be divided in two parts, 4 and 951855, that multiplied together give a triangular number (3807420 = T₂₇₅₉).

The spelling of 4951855 in words is "four million, nine hundred fifty-one thousand, eight hundred fifty-five".