48631819 has 4 divisors (see below), whose sum is σ = 48876400. Its totient is φ = 48387240.

The previous prime is 48631813. The next prime is 48631829. The reversal of 48631819 is 91813684.

48631819 = 392² + 393² + ... + 590².

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

It is a cyclic number.

It is not a de Polignac number, because 48631819 - 2⁵ = 48631787 is a prime.

It is a super-2 number, since 2×48631819² = 4730107638497522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48631813) 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, 121992 + ... + 122389.

It is an arithmetic number, because the mean of its divisors is an integer number (12219100).

Almost surely, 2^48631819 is an apocalyptic number.

48631819 is a deficient number, since it is larger than the sum of its proper divisors (244581).

48631819 is a wasteful number, since it uses less digits than its factorization.

48631819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244580.

The product of its digits is 41472, while the sum is 40.

The square root of 48631819 is about 6973.6517693386. The cubic root of 48631819 is about 365.0117441646.

The spelling of 48631819 in words is "forty-eight million, six hundred thirty-one thousand, eight hundred nineteen".