1625455141 has 4 divisors (see below), whose sum is σ = 1626688800. Its totient is φ = 1624221484.

The previous prime is 1625455109. The next prime is 1625455159. The reversal of 1625455141 is 1415545261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1625455141 - 2⁵ = 1625455109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1625455097 and 1625455106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625455441) 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, 614851 + ... + 617488.

It is an arithmetic number, because the mean of its divisors is an integer number (406672200).

Almost surely, 2^1625455141 is an apocalyptic number.

It is an amenable number.

1625455141 is a deficient number, since it is larger than the sum of its proper divisors (1233659).

1625455141 is a wasteful number, since it uses less digits than its factorization.

1625455141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233658.

The product of its digits is 24000, while the sum is 34.

The square root of 1625455141 is about 40316.9336755662. The cubic root of 1625455141 is about 1175.7770965703. Note that the first 3 decimals are identical.

The spelling of 1625455141 in words is "one billion, six hundred twenty-five million, four hundred fifty-five thousand, one hundred forty-one".