1253562465 has 32 divisors (see below), whose sum is σ = 2025354240. Its totient is φ = 662042304.

The previous prime is 1253562403. The next prime is 1253562481. The reversal of 1253562465 is 5642653521.

It is not a de Polignac number, because 1253562465 - 2¹¹ = 1253560417 is a prime.

It is a Curzon number.

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, 1515382 + ... + 1516208.

It is an arithmetic number, because the mean of its divisors is an integer number (63292320).

Almost surely, 2^1253562465 is an apocalyptic number.

1253562465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1253562465 is a deficient number, since it is larger than the sum of its proper divisors (771791775).

1253562465 is a wasteful number, since it uses less digits than its factorization.

1253562465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701.

The product of its digits is 216000, while the sum is 39.

The square root of 1253562465 is about 35405.6840775602. The cubic root of 1253562465 is about 1078.2397208065.

The spelling of 1253562465 in words is "one billion, two hundred fifty-three million, five hundred sixty-two thousand, four hundred sixty-five".