49012555 has 4 divisors (see below), whose sum is σ = 58815072. Its totient is φ = 39210040.

The previous prime is 49012549. The next prime is 49012583. The reversal of 49012555 is 55521094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55521094 = 2 ⋅27760547.

It is not a de Polignac number, because 49012555 - 2²¹ = 46915403 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4901251 + ... + 4901260.

It is an arithmetic number, because the mean of its divisors is an integer number (14703768).

Almost surely, 2^49012555 is an apocalyptic number.

49012555 is a deficient number, since it is larger than the sum of its proper divisors (9802517).

49012555 is an equidigital number, since it uses as much as digits as its factorization.

49012555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9802516.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 49012555 is about 7000.8967282770. The cubic root of 49012555 is about 365.9618217913.

The spelling of 49012555 in words is "forty-nine million, twelve thousand, five hundred fifty-five".