49125421 has 8 divisors (see below), whose sum is σ = 51948288. Its totient is φ = 46380000.

The previous prime is 49125413. The next prime is 49125437. The reversal of 49125421 is 12452194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49125421 - 2³ = 49125413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49125421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49125451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18055 + ... + 20596.

It is an arithmetic number, because the mean of its divisors is an integer number (6493536).

Almost surely, 2^49125421 is an apocalyptic number.

49125421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

49125421 is a deficient number, since it is larger than the sum of its proper divisors (2822867).

49125421 is a wasteful number, since it uses less digits than its factorization.

49125421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38723.

The product of its digits is 2880, while the sum is 28.

The square root of 49125421 is about 7008.9529175191. The cubic root of 49125421 is about 366.2425184554.

The spelling of 49125421 in words is "forty-nine million, one hundred twenty-five thousand, four hundred twenty-one".