61653430 has 16 divisors (see below), whose sum is σ = 112076784. Its totient is φ = 24416800.

The previous prime is 61653421. The next prime is 61653439. The reversal of 61653430 is 3435616.

It is an interprime number because it is at equal distance from previous prime (61653421) and next prime (61653439).

It is a super-2 number, since 2×61653430² = 7602290861529800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61653439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29512 + ... + 31531.

It is an arithmetic number, because the mean of its divisors is an integer number (7004799).

Almost surely, 2^61653430 is an apocalyptic number.

61653430 is a deficient number, since it is larger than the sum of its proper divisors (50423354).

61653430 is a wasteful number, since it uses less digits than its factorization.

61653430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61151.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 61653430 is about 7851.9698165492. The cubic root of 61653430 is about 395.0503167222.

The spelling of 61653430 in words is "sixty-one million, six hundred fifty-three thousand, four hundred thirty".