61525263 has 8 divisors (see below), whose sum is σ = 83189376. Its totient is φ = 40439000.

The previous prime is 61525241. The next prime is 61525273. The reversal of 61525263 is 36252516.

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

It is a cyclic number.

It is not a de Polignac number, because 61525263 - 2¹⁸ = 61263119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61525263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61525273) 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, 144213 + ... + 144638.

It is an arithmetic number, because the mean of its divisors is an integer number (10398672).

Almost surely, 2^61525263 is an apocalyptic number.

61525263 is a deficient number, since it is larger than the sum of its proper divisors (21664113).

61525263 is a wasteful number, since it uses less digits than its factorization.

61525263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288925.

The product of its digits is 10800, while the sum is 30.

The square root of 61525263 is about 7843.8041153512. The cubic root of 61525263 is about 394.7763793277.

Adding to 61525263 its reverse (36252516), we get a palindrome (97777779).

It can be divided in two parts, 615 and 25263, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 61525263 in words is "sixty-one million, five hundred twenty-five thousand, two hundred sixty-three".