1625652465 has 32 divisors (see below), whose sum is σ = 2634111360. Its totient is φ = 856052736.

The previous prime is 1625652439. The next prime is 1625652467. The reversal of 1625652465 is 5642565261.

It is a happy number.

It is not a de Polignac number, because 1625652465 - 2⁵ = 1625652433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1625652467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 477991 + ... + 481379.

It is an arithmetic number, because the mean of its divisors is an integer number (82315980).

Almost surely, 2^1625652465 is an apocalyptic number.

1625652465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1625652465 is a deficient number, since it is larger than the sum of its proper divisors (1008458895).

1625652465 is a wasteful number, since it uses less digits than its factorization.

1625652465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3793.

The product of its digits is 432000, while the sum is 42.

The square root of 1625652465 is about 40319.3807616139. The cubic root of 1625652465 is about 1175.8246729170.

The spelling of 1625652465 in words is "one billion, six hundred twenty-five million, six hundred fifty-two thousand, four hundred sixty-five".