49038251 has 4 divisors (see below), whose sum is σ = 51922872. Its totient is φ = 46153632.

The previous prime is 49038247. The next prime is 49038281. The reversal of 49038251 is 15283094.

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 49038251 - 2² = 49038247 is a prime.

It is a super-2 number, since 2×49038251² = 4809500122278002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49038211) 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, 1442285 + ... + 1442318.

It is an arithmetic number, because the mean of its divisors is an integer number (12980718).

Almost surely, 2^49038251 is an apocalyptic number.

49038251 is a deficient number, since it is larger than the sum of its proper divisors (2884621).

49038251 is a wasteful number, since it uses less digits than its factorization.

49038251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884620.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 49038251 is about 7002.7316812798. The cubic root of 49038251 is about 366.0257653535.

The spelling of 49038251 in words is "forty-nine million, thirty-eight thousand, two hundred fifty-one".