48021951 has 4 divisors (see below), whose sum is σ = 64029272. Its totient is φ = 32014632.

The previous prime is 48021943. The next prime is 48021971. The reversal of 48021951 is 15912084.

It is a happy number.

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

It is not a de Polignac number, because 48021951 - 2³ = 48021943 is a prime.

It is a super-2 number, since 2×48021951² = 4612215555692802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48021931) 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, 8003656 + ... + 8003661.

It is an arithmetic number, because the mean of its divisors is an integer number (16007318).

Almost surely, 2^48021951 is an apocalyptic number.

48021951 is a deficient number, since it is larger than the sum of its proper divisors (16007321).

48021951 is a wasteful number, since it uses less digits than its factorization.

48021951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16007320.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 48021951 is about 6929.7872261708. The cubic root of 48021951 is about 363.4795095877.

The spelling of 48021951 in words is "forty-eight million, twenty-one thousand, nine hundred fifty-one".