1625253553 has 8 divisors (see below), whose sum is σ = 2026290240. Its totient is φ = 1266431280.

The previous prime is 1625253551. The next prime is 1625253569. The reversal of 1625253553 is 3553525261.

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

It is a cyclic number.

It is not a de Polignac number, because 1625253553 - 2¹ = 1625253551 is a prime.

It is a super-2 number, since 2×1625253553² = 5282898223078247618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1625253551) 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 7 ways as a sum of consecutive naturals, for example, 10553518 + ... + 10553671.

It is an arithmetic number, because the mean of its divisors is an integer number (253286280).

Almost surely, 2^1625253553 is an apocalyptic number.

It is an amenable number.

1625253553 is a deficient number, since it is larger than the sum of its proper divisors (401036687).

1625253553 is a wasteful number, since it uses less digits than its factorization.

1625253553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21107207.

The product of its digits is 135000, while the sum is 37.

The square root of 1625253553 is about 40314.4335567300. The cubic root of 1625253553 is about 1175.7284881638.

The spelling of 1625253553 in words is "one billion, six hundred twenty-five million, two hundred fifty-three thousand, five hundred fifty-three".