61553150 has 12 divisors (see below), whose sum is σ = 114488952. Its totient is φ = 24621240.

The previous prime is 61553143. The next prime is 61553153. The reversal of 61553150 is 5135516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61553153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 615482 + ... + 615581.

It is an arithmetic number, because the mean of its divisors is an integer number (9540746).

Almost surely, 2^61553150 is an apocalyptic number.

61553150 is a deficient number, since it is larger than the sum of its proper divisors (52935802).

61553150 is a wasteful number, since it uses less digits than its factorization.

61553150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231075 (or 1231070 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 61553150 is about 7845.5815590688. The cubic root of 61553150 is about 394.8360158924.

Adding to 61553150 its reverse (5135516), we get a palindrome (66688666).

The spelling of 61553150 in words is "sixty-one million, five hundred fifty-three thousand, one hundred fifty".