525461561 has 8 divisors (see below), whose sum is σ = 529788000. Its totient is φ = 521143200.

The previous prime is 525461543. The next prime is 525461579. The reversal of 525461561 is 165164525.

It is an interprime number because it is at equal distance from previous prime (525461543) and next prime (525461579).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525461561 is a prime.

It is a super-2 number, since 2×525461561² = 552219704177113442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525467561) 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, 249290 + ... + 251388.

It is an arithmetic number, because the mean of its divisors is an integer number (66223500).

Almost surely, 2^525461561 is an apocalyptic number.

It is an amenable number.

525461561 is a deficient number, since it is larger than the sum of its proper divisors (4326439).

525461561 is a wasteful number, since it uses less digits than its factorization.

525461561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039.

The product of its digits is 36000, while the sum is 35.

The square root of 525461561 is about 22922.9483487618. The cubic root of 525461561 is about 806.9506651105.

The spelling of 525461561 in words is "five hundred twenty-five million, four hundred sixty-one thousand, five hundred sixty-one".