1625754545 has 16 divisors (see below), whose sum is σ = 2036482560. Its totient is φ = 1244496000.

The previous prime is 1625754539. The next prime is 1625754547. The reversal of 1625754545 is 5454575261.

It is not a de Polignac number, because 1625754545 - 2⁸ = 1625754289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1625754496 and 1625754505.

It is not an unprimeable number, because it can be changed into a prime (1625754547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45131 + ... + 72720.

It is an arithmetic number, because the mean of its divisors is an integer number (127280160).

Almost surely, 2^1625754545 is an apocalyptic number.

It is an amenable number.

1625754545 is a deficient number, since it is larger than the sum of its proper divisors (410728015).

1625754545 is a wasteful number, since it uses less digits than its factorization.

1625754545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117976.

The product of its digits is 840000, while the sum is 44.

The square root of 1625754545 is about 40320.6466341997. The cubic root of 1625754545 is about 1175.8492836857.

The spelling of 1625754545 in words is "one billion, six hundred twenty-five million, seven hundred fifty-four thousand, five hundred forty-five".