1653062540 has 24 divisors (see below), whose sum is σ = 3472269360. Its totient is φ = 661065408.

The previous prime is 1653062539. The next prime is 1653062549. The reversal of 1653062540 is 452603561.

It is a super-2 number, since 2×1653062540² = 5465231522302503200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1653062497 and 1653062506.

It is not an unprimeable number, because it can be changed into a prime (1653062549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110339 + ... + 124421.

It is an arithmetic number, because the mean of its divisors is an integer number (144677890).

Almost surely, 2^1653062540 is an apocalyptic number.

1653062540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1653062540 is an abundant number, since it is smaller than the sum of its proper divisors (1819206820).

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

1653062540 is a wasteful number, since it uses less digits than its factorization.

1653062540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19961 (or 19959 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1653062540 is about 40657.8718085440. The cubic root of 1653062540 is about 1182.3963892431.

The spelling of 1653062540 in words is "one billion, six hundred fifty-three million, sixty-two thousand, five hundred forty".