49525657 has 4 divisors (see below), whose sum is σ = 49553460. Its totient is φ = 49497856.

The previous prime is 49525621. The next prime is 49525667. The reversal of 49525657 is 75652594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75652594 = 2 ⋅37826297.

It can be written as a sum of positive squares in 2 ways, for example, as 45481536 + 4044121 = 6744^2 + 2011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49525657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49525667) 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, 11032 + ... + 14857.

It is an arithmetic number, because the mean of its divisors is an integer number (12388365).

Almost surely, 2^49525657 is an apocalyptic number.

It is an amenable number.

49525657 is a deficient number, since it is larger than the sum of its proper divisors (27803).

49525657 is a wasteful number, since it uses less digits than its factorization.

49525657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27802.

The product of its digits is 378000, while the sum is 43.

The square root of 49525657 is about 7037.4467671166. The cubic root of 49525657 is about 367.2344499024.

It can be divided in two parts, 4952 and 5657, that added together give a square (10609 = 103²).

The spelling of 49525657 in words is "forty-nine million, five hundred twenty-five thousand, six hundred fifty-seven".