49028251 has 4 divisors (see below), whose sum is σ = 50224104. Its totient is φ = 47832400.

The previous prime is 49028237. The next prime is 49028257. The reversal of 49028251 is 15282094.

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 49028251 - 2⁷ = 49028123 is a prime.

It is a super-2 number, since 2×49028251² = 4807538792238002, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49028257) 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, 597865 + ... + 597946.

It is an arithmetic number, because the mean of its divisors is an integer number (12556026).

Almost surely, 2^49028251 is an apocalyptic number.

49028251 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

49028251 is a deficient number, since it is larger than the sum of its proper divisors (1195853).

49028251 is a wasteful number, since it uses less digits than its factorization.

49028251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195852.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 49028251 is about 7002.0176377956. The cubic root of 49028251 is about 366.0008833725. Note that the first 3 decimals are identical.

The spelling of 49028251 in words is "forty-nine million, twenty-eight thousand, two hundred fifty-one".