61525 has 12 divisors (see below), whose sum is σ = 80352. Its totient is φ = 46640.

The previous prime is 61519. The next prime is 61543. The reversal of 61525 is 52516.

61525 = 21³ + 22³ + ... + 25³.

It is a happy number.

61525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61525 - 2⁵ = 61493 is a prime.

It is a Duffinian number.

61525 is a lucky number.

It is a plaindrome in base 15.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522 + ... + 628.

It is an arithmetic number, because the mean of its divisors is an integer number (6696).

2⁶¹⁵²⁵ is an apocalyptic number.

It is an amenable number.

61525 is a deficient number, since it is larger than the sum of its proper divisors (18827).

61525 is a wasteful number, since it uses less digits than its factorization.

61525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 135 counting only the distinct ones).

The product of its digits is 300, while the sum is 19.

The square root of 61525 is about 248.0423350962. The cubic root of 61525 is about 39.4775816814.

Subtracting from 61525 its reverse (52516), we obtain a palindrome (9009).

The spelling of 61525 in words is "sixty-one thousand, five hundred twenty-five".