61915053 has 16 divisors (see below), whose sum is σ = 88128000. Its totient is φ = 38550960.

The previous prime is 61915039. The next prime is 61915081. The reversal of 61915053 is 35051916.

It is not a de Polignac number, because 61915053 - 2⁶ = 61914989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61915053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61915093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3603 + ... + 11696.

It is an arithmetic number, because the mean of its divisors is an integer number (5508000).

Almost surely, 2^61915053 is an apocalyptic number.

It is an amenable number.

61915053 is a deficient number, since it is larger than the sum of its proper divisors (26212947).

61915053 is a wasteful number, since it uses less digits than its factorization.

61915053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15392.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 61915053 is about 7868.6118852057. The cubic root of 61915053 is about 395.6083197398.

Adding to 61915053 its reverse (35051916), we get a palindrome (96966969).

The spelling of 61915053 in words is "sixty-one million, nine hundred fifteen thousand, fifty-three".