49137553 has 4 divisors (see below), whose sum is σ = 51723760. Its totient is φ = 46551348.

The previous prime is 49137551. The next prime is 49137559. The reversal of 49137553 is 35573194.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35573194 = 2 ⋅17786597.

It is a cyclic number.

It is not a de Polignac number, because 49137553 - 2¹ = 49137551 is a prime.

It is a super-2 number, since 2×49137553² = 4828998229655618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49137551) 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, 1293075 + ... + 1293112.

It is an arithmetic number, because the mean of its divisors is an integer number (12930940).

Almost surely, 2^49137553 is an apocalyptic number.

It is an amenable number.

49137553 is a deficient number, since it is larger than the sum of its proper divisors (2586207).

49137553 is a wasteful number, since it uses less digits than its factorization.

49137553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586206.

The product of its digits is 56700, while the sum is 37.

The square root of 49137553 is about 7009.8183286017. The cubic root of 49137553 is about 366.2726650233.

The spelling of 49137553 in words is "forty-nine million, one hundred thirty-seven thousand, five hundred fifty-three".