60611551 has 32 divisors (see below), whose sum is σ = 82123776. Its totient is φ = 43200000.

The previous prime is 60611519. The next prime is 60611557. The reversal of 60611551 is 15511606.

60611551 = T₂₇₄ + T₂₇₅ + ... + T₇₂₆.

It is a 9-Lehmer number, since φ(60611551) divides (60611551-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 60611551 - 2⁵ = 60611519 is a prime.

It is a super-2 number, since 2×60611551² = 7347520229251202, which contains 22 as substring.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60611557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150951 + ... + 151351.

It is an arithmetic number, because the mean of its divisors is an integer number (2566368).

Almost surely, 2^60611551 is an apocalyptic number.

60611551 is a deficient number, since it is larger than the sum of its proper divisors (21512225).

60611551 is a wasteful number, since it uses less digits than its factorization.

60611551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 60611551 is about 7785.3420605648. The cubic root of 60611551 is about 392.8123490400.

The spelling of 60611551 in words is "sixty million, six hundred eleven thousand, five hundred fifty-one".