49492921 has 2 divisors, whose sum is σ = 49492922. Its totient is φ = 49492920.

The previous prime is 49492873. The next prime is 49492943. The reversal of 49492921 is 12929494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49280400 + 212521 = 7020^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 49492921 - 2¹¹ = 49490873 is a prime.

It is a super-2 number, since 2×49492921² = 4899098458224482, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (49492991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24746460 + 24746461.

It is an arithmetic number, because the mean of its divisors is an integer number (24746461).

Almost surely, 2^49492921 is an apocalyptic number.

It is an amenable number.

49492921 is a deficient number, since it is larger than the sum of its proper divisors (1).

49492921 is an equidigital number, since it uses as much as digits as its factorization.

49492921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 49492921 is about 7035.1205391237. The cubic root of 49492921 is about 367.1535192130.

The spelling of 49492921 in words is "forty-nine million, four hundred ninety-two thousand, nine hundred twenty-one".