61132501 has 4 divisors (see below), whose sum is σ = 61537504. Its totient is φ = 60727500.

The previous prime is 61132483. The next prime is 61132507. The reversal of 61132501 is 10523116.

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 61132501 - 2⁵ = 61132469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61132507) 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, 202275 + ... + 202576.

It is an arithmetic number, because the mean of its divisors is an integer number (15384376).

Almost surely, 2^61132501 is an apocalyptic number.

It is an amenable number.

61132501 is a deficient number, since it is larger than the sum of its proper divisors (405003).

61132501 is a wasteful number, since it uses less digits than its factorization.

61132501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405002.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 61132501 is about 7818.7275819023. The cubic root of 61132501 is about 393.9345339450.

Adding to 61132501 its reverse (10523116), we get a palindrome (71655617).

The spelling of 61132501 in words is "sixty-one million, one hundred thirty-two thousand, five hundred one".