253455037465 has 12 divisors (see below), whose sum is σ = 353802542436. Its totient is φ = 173797739808.

The previous prime is 253455037463. The next prime is 253455037499. The reversal of 253455037465 is 564730554352.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 192590200201 + 60864837264 = 438851^2 + 246708^2 .

It is not a de Polignac number, because 253455037465 - 2¹ = 253455037463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (253455037463) 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 11 ways as a sum of consecutive naturals, for example, 517254934 + ... + 517255423.

It is an arithmetic number, because the mean of its divisors is an integer number (29483545203).

Almost surely, 2^253455037465 is an apocalyptic number.

It is an amenable number.

253455037465 is a deficient number, since it is larger than the sum of its proper divisors (100347504971).

253455037465 is a wasteful number, since it uses less digits than its factorization.

253455037465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034510376 (or 1034510369 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 49.

The spelling of 253455037465 in words is "two hundred fifty-three billion, four hundred fifty-five million, thirty-seven thousand, four hundred sixty-five".