1625765541 has 8 divisors (see below), whose sum is σ = 2180668224. Its totient is φ = 1077353280.

The previous prime is 1625765527. The next prime is 1625765563. The reversal of 1625765541 is 1455675261.

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

It is a de Polignac number, because none of the positive numbers 2^k-1625765541 is a prime.

It is a super-2 number, since 2×1625765541² = 5286227188606045362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1625765493 and 1625765502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625765341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622020 + ... + 1623021.

It is an arithmetic number, because the mean of its divisors is an integer number (272583528).

Almost surely, 2^1625765541 is an apocalyptic number.

It is an amenable number.

1625765541 is a deficient number, since it is larger than the sum of its proper divisors (554902683).

1625765541 is a wasteful number, since it uses less digits than its factorization.

1625765541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245211.

The product of its digits is 252000, while the sum is 42.

The square root of 1625765541 is about 40320.7829909093. The cubic root of 1625765541 is about 1175.8519346823.

It can be divided in two parts, 1625765 and 541, that added together give a triangular number (1626306 = T₁₈₀₃).

The spelling of 1625765541 in words is "one billion, six hundred twenty-five million, seven hundred sixty-five thousand, five hundred forty-one".