1253623355 has 8 divisors (see below), whose sum is σ = 1506060864. Its totient is φ = 1001756800.

The previous prime is 1253623337. The next prime is 1253623387. The reversal of 1253623355 is 5533263521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1253623355 - 2¹⁸ = 1253361211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137891 + ... + 146700.

It is an arithmetic number, because the mean of its divisors is an integer number (188257608).

Almost surely, 2^1253623355 is an apocalyptic number.

1253623355 is a deficient number, since it is larger than the sum of its proper divisors (252437509).

1253623355 is an equidigital number, since it uses as much as digits as its factorization.

1253623355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285477.

The product of its digits is 81000, while the sum is 35.

The square root of 1253623355 is about 35406.5439572969. The cubic root of 1253623355 is about 1078.2571785068.

Adding to 1253623355 its reverse (5533263521), we get a palindrome (6786886876).

The spelling of 1253623355 in words is "one billion, two hundred fifty-three million, six hundred twenty-three thousand, three hundred fifty-five".