1625965357 has 4 divisors (see below), whose sum is σ = 1721610396. Its totient is φ = 1530320320.

The previous prime is 1625965343. The next prime is 1625965373. The reversal of 1625965357 is 7535695261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7535695261 = 43 ⋅175248727.

It can be written as a sum of positive squares in 2 ways, for example, as 821051716 + 804913641 = 28654^2 + 28371^2 .

It is a cyclic number.

It is not a de Polignac number, because 1625965357 - 2²³ = 1617576749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1625965357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625965157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47822494 + ... + 47822527.

It is an arithmetic number, because the mean of its divisors is an integer number (430402599).

Almost surely, 2^1625965357 is an apocalyptic number.

1625965357 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1625965357 is a deficient number, since it is larger than the sum of its proper divisors (95645039).

1625965357 is an equidigital number, since it uses as much as digits as its factorization.

1625965357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95645038.

The product of its digits is 1701000, while the sum is 49.

The square root of 1625965357 is about 40323.2607436452. The cubic root of 1625965357 is about 1175.9001057130.

The spelling of 1625965357 in words is "one billion, six hundred twenty-five million, nine hundred sixty-five thousand, three hundred fifty-seven".