1625376540 has 48 divisors (see below), whose sum is σ = 4567183488. Its totient is φ = 431897664.

The previous prime is 1625376521. The next prime is 1625376551. The reversal of 1625376540 is 456735261.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 30882 + ... + 64841.

It is an arithmetic number, because the mean of its divisors is an integer number (95149656).

Almost surely, 2^1625376540 is an apocalyptic number.

1625376540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625376540 is an abundant number, since it is smaller than the sum of its proper divisors (2941806948).

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

1625376540 is a wasteful number, since it uses less digits than its factorization.

1625376540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96018 (or 96016 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 1625376540 is about 40315.9588748674. The cubic root of 1625376540 is about 1175.7581441872.

The spelling of 1625376540 in words is "one billion, six hundred twenty-five million, three hundred seventy-six thousand, five hundred forty".