1625516054 has 4 divisors (see below), whose sum is σ = 2438274084. Its totient is φ = 812758026.

The previous prime is 1625516051. The next prime is 1625516077. The reversal of 1625516054 is 4506155261.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625516051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406379012 + ... + 406379015.

It is an arithmetic number, because the mean of its divisors is an integer number (609568521).

Almost surely, 2^1625516054 is an apocalyptic number.

1625516054 is a deficient number, since it is larger than the sum of its proper divisors (812758030).

1625516054 is an equidigital number, since it uses as much as digits as its factorization.

1625516054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812758029.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 1625516054 is about 40317.6890954826. The cubic root of 1625516054 is about 1175.7917835778.

The spelling of 1625516054 in words is "one billion, six hundred twenty-five million, five hundred sixteen thousand, fifty-four".