1625261500 has 48 divisors (see below), whose sum is σ = 3672002880. Its totient is φ = 627681600.

The previous prime is 1625261479. The next prime is 1625261503. The reversal of 1625261500 is 51625261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625261503) 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 15 ways as a sum of consecutive naturals, for example, 41544 + ... + 70543.

It is an arithmetic number, because the mean of its divisors is an integer number (76500060).

Almost surely, 2^1625261500 is an apocalyptic number.

1625261500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625261500 is an abundant number, since it is smaller than the sum of its proper divisors (2046741380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1625261500 is a wasteful number, since it uses less digits than its factorization.

1625261500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112135 (or 112123 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1625261500 is about 40314.5321193239. The cubic root of 1625261500 is about 1175.7304044800.

Adding to 1625261500 its reverse (51625261), we get a palindrome (1676886761).

The spelling of 1625261500 in words is "one billion, six hundred twenty-five million, two hundred sixty-one thousand, five hundred".