49618454 has 4 divisors (see below), whose sum is σ = 74427684. Its totient is φ = 24809226.

The previous prime is 49618451. The next prime is 49618463. The reversal of 49618454 is 45481694.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45481694 = 2 ⋅22740847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49618451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12404612 + ... + 12404615.

It is an arithmetic number, because the mean of its divisors is an integer number (18606921).

Almost surely, 2^49618454 is an apocalyptic number.

49618454 is a deficient number, since it is larger than the sum of its proper divisors (24809230).

49618454 is a wasteful number, since it uses less digits than its factorization.

49618454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24809229.

The product of its digits is 138240, while the sum is 41.

The square root of 49618454 is about 7044.0367687854. The cubic root of 49618454 is about 367.4636711123.

The spelling of 49618454 in words is "forty-nine million, six hundred eighteen thousand, four hundred fifty-four".