1562025540 has 96 divisors (see below), whose sum is σ = 4487083776. Its totient is φ = 405849600.

The previous prime is 1562025533. The next prime is 1562025571. The reversal of 1562025540 is 455202651.

It is a super-2 number, since 2×1562025540² = 4879847575224583200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1562025498 and 1562025507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 478554 + ... + 481806.

It is an arithmetic number, because the mean of its divisors is an integer number (46740456).

Almost surely, 2^1562025540 is an apocalyptic number.

1562025540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1562025540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2243541888).

1562025540 is an abundant number, since it is smaller than the sum of its proper divisors (2925058236).

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

1562025540 is a wasteful number, since it uses less digits than its factorization.

1562025540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469 (or 3467 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1562025540 is about 39522.4687994057. The cubic root of 1562025540 is about 1160.2797432734.

The spelling of 1562025540 in words is "one billion, five hundred sixty-two million, twenty-five thousand, five hundred forty".