61527401 has 4 divisors (see below), whose sum is σ = 66260292. Its totient is φ = 56794512.

The previous prime is 61527397. The next prime is 61527407. The reversal of 61527401 is 10472516.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31933801 + 29593600 = 5651^2 + 5440^2 .

It is a cyclic number.

It is not a de Polignac number, because 61527401 - 2² = 61527397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61527407) 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, 2366426 + ... + 2366451.

It is an arithmetic number, because the mean of its divisors is an integer number (16565073).

Almost surely, 2^61527401 is an apocalyptic number.

It is an amenable number.

61527401 is a deficient number, since it is larger than the sum of its proper divisors (4732891).

61527401 is a wasteful number, since it uses less digits than its factorization.

61527401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732890.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 61527401 is about 7843.9404000795. The cubic root of 61527401 is about 394.7809520950.

Adding to 61527401 its reverse (10472516), we get a palindrome (71999917).

The spelling of 61527401 in words is "sixty-one million, five hundred twenty-seven thousand, four hundred one".