61653230 has 32 divisors (see below), whose sum is σ = 114307200. Its totient is φ = 23932192.

The previous prime is 61653223. The next prime is 61653239. The reversal of 61653230 is 3235616.

It is a super-2 number, since 2×61653230² = 7602241538865800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61653230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61653239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48341 + ... + 49599.

It is an arithmetic number, because the mean of its divisors is an integer number (3572100).

Almost surely, 2^61653230 is an apocalyptic number.

61653230 is a deficient number, since it is larger than the sum of its proper divisors (52653970).

61653230 is a wasteful number, since it uses less digits than its factorization.

61653230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 61653230 is about 7851.9570808812. The cubic root of 61653230 is about 395.0498895486.

Adding to 61653230 its reverse (3235616), we get a palindrome (64888846).

The spelling of 61653230 in words is "sixty-one million, six hundred fifty-three thousand, two hundred thirty".